HNHacker News
TopNewBestAskShowJobs

simonrobb

260 karma · joined May 20, 2012

Engineer and founder (ex-Uber). Structural engineer in a previous life.

sajrobb [at] gmail dot com

submissionscomments
simonrobb··on SoftBank said to be trying to buy a big stake in Uber at a discount
I'll also add that liquidation preference is to reduce risk for investors in case things don't pan out well in a liquidation event. If all goes well and money starts raining from the sky, the payout will be equal for the common stock and preferred stock alike. I can't quite work out how that risk should be accounted for in financial value.

Certainly the preferred shares are worth more, in that one should be prepared to pay more in order to buy them, but I'm not convinced that those disparate buy prices should be incorporated into the value of the company as a whole, since a preferred share and a common share represent the same percent ownership of a company. Perhaps somebody with more understanding than I could comment.

simonrobb··on SoftBank said to be trying to buy a big stake in Uber at a discount
Good reading. Thanks for the link.

I don't understand how this model can be applied to private companies. It seems to require a cap table, which isn't publicly available until after the company goes public. I understand that in the example given (Square), the analysis calculates the fair market value at the time of their Series E, but it was performed after they went public, with the benefit of the cap table. Can this actually be used by the public in place of a funding valuation?

I agree there are flaws in using that number as a representation of a company's value, and to be clear: I'm not arguing that Uber's $69B valuation is not inflated. I'm arguing that it's inaccurate to report Uber was worth $69B at their last round, and now that SoftBank intends to buy common stock at $48B, Uber are valued at $48B (or some dramatically reduced value in-between). I'm arguing that because SoftBank is not offering $X/share to Uber in exchange for newly issued shares, as is the case in a funding round. This is a transfer of ownership between existing shareholders, and if they can strike a deal in this secondary market then so be it. It doesn't affect Uber in the way a funding round does: they've allowed the deal to go down, but they a) receive none of the money changing hands (that goes to the shareholders who are selling), and b) take no dilution. So it's unfair to say that this sale price is indicative of the company's valuation in the same way a new funding round would be - they are entirely different beasts.

simonrobb··on SoftBank said to be trying to buy a big stake in Uber at a discount
> Uber can’t be worth $69B unless the values of all the shares (including the common) add up to $69B

This deal is effectively a one-time secondary market for existing investors to sell their stock. If I'm an early employee who has been wearing golden handcuffs for the last eight years, I'd probably accept a lower purchase price than "what they're worth" for the sake of that liquidity. That doesn't reflect upon Uber, or Uber's value. What you're saying might be true if this were a perfect market, but there's externalities in that market (like liquidity) which you're not considering.

> valuation = number of shares times last preferred price, but that’s a convenient fiction.

Fiction as it may be, it's the best instrument the public has to work out the value of a private company. Investors have access to internal numbers, apply due diligence (we assume, since it's their money), and give their best guess as to future returns. That doesn't mean we shouldn't scrutinise the valuation investors accept during a round, but let's not pretend it's not a good marker.

> $48B (or whatever it may be) is a spectacular success by any measure

I doubt existing investors would see it that way, if $21B were wiped off the valuation as reported.

> I’m not sure what you’re so defensive about

My apologies if that's the way it came across. I stand by the criticism I made of the article.

simonrobb··on SoftBank said to be trying to buy a big stake in Uber at a discount
> exploiting Benchmark’s desire for an exit

Does that imply that they'll be buying Benchmark's stock, rather than employees'?

> SoftBank is getting extremely cheap debt at the moment

That sounds like some interesting background to the deal, please expand if you have more detail!

simonrobb··on SoftBank said to be trying to buy a big stake in Uber at a discount
I may be falling for a nice perception play from Uber, but I took this more-or-less at face value: Softbank is buying up a lot of valuable property at the moment, and even though Uber wouldn't be raising again for another 6-12 months, they wanted a piece. This is the mechanism they managed to negotiate.

Early shareholders gain liquidity, Softbank gets cheap stock, and the market gets some bullish signals on Uber in the form of Softbank's backing. From the outside it looks like a pretty good deal. Of course there might be internal panic and I've got it all wrong, but I see some big wins for both parties.

simonrobb··on SoftBank said to be trying to buy a big stake in Uber at a discount
> it has no effect on the current valuation at all

Agreed, this statement was probably a little strong. But certainly it doesn't represent a new $48B valuation as the article suggests.

I suppose I'm objecting to the implied suggestion that Uber is having a down round (a few other commenters have jumped on that) because of the negative public sentiment they are copping at the moment. It's not like Uber needs cash right now, and I really doubt the board would approve a deal which brought their valuation down for the sake of money they don't need.

simonrobb··on SoftBank said to be trying to buy a big stake in Uber at a discount
I don't think an appeal to authority adds much to the conversation here. Mainstream media (and social media, and niche media) should be open to fact-checking by the public now more than ever.
simonrobb··on SoftBank said to be trying to buy a big stake in Uber at a discount
"...at a price that would value the ride-hailing company at 30 percent less than its most recent $69 billion valuation".

This is not true, it has no effect on the current valuation at all. Softbank are looking to buy shares at this lower valuation since they are a different class of share to what they would get otherwise; these are common stock (employees will be a major source of stock for the sale) and therefore don't have the same benefits of preferred stock, of course they expect a better price. Where they are receiving preferred shares (the $1B investment) they are using the $69B valuation from Uber's last round (presumably this $1B is being added as a late-comer to that round).

I can't believe that a Bloomberg reporter would get this wrong, so this sounds a lot like jumping on the media band wagon. Suggesting Uber has lost 30% of its value is blatantly false.

Edit: It's fair to say there might be some impact on the notional valuation between rounds, which is hazy at the best of times. However it's not a 30% cut.

simonrobb··on Ask HN: We have a great team and capital but can't find a good idea
I have an Agtech startup I've been working on for the past year, but am stepping away from it for personal reasons. It's R&D heavy, so I haven't got customers yet, but I believe there is real opportunity (said every customer-less startup founder ever). It's in an emerging market (agriculture) with booming investment dollars available. Right now the product is largely IoT, but there is scope for a lot of machine learning and blockchain in the near future which would keep your PhD interested.

I've put a lot of hard work into this and would love to see it in somebody else's capable hands rather than going to waste - would you like to talk it over more? Drop me an email at sajrobb at gmail dot com.

simonrobb··on What will self-driving cars do to cities?
I currently live in East Melbourne (~15 second walk from Hoddle Street) and pay through the nose for the privilege. And yet a few years ago lived in one of those big Victorian terraces on Hoddle just 50 metres away, where a mate and I paid AUD $240/week each for the entire place. What you say about the disparity in property value caused by the road is spot on.

Funnily enough, a little while back my neighbour made the exact same point about Hoddle Street - in (say) twenty years the property values are going to see a massive shift because of changing technology in our cars. However I think it will be the move to electric cars that makes the real difference. No more fumes, no more grime covering every surface, far less noise. Add in reduced traffic because of self-driving tech and suddenly that property will be worth a packet.

simonrobb··on Show HN: GreenPiThumb – A Raspberry Pi Gardening Bot
Miceuz's work is excellent and this sensor in particular is on point. I've been using a handful of them with an ESP8266 as a wireless I2C master for the last year or so.
simonrobb··on Show HN: GreenPiThumb – A Raspberry Pi Gardening Bot
...nope. This'll give you a nice little touch sensor but not much more than that. Try turning this into any sort of usable measurement of soil moisture as opposed to "there's wet soil on this strip of foil" and you'll run into a wall.
simonrobb··on Slack Said to Draw Interest from Amazon
That's still a lot of users. By that logic most B2C companies (e.g.: Atlassian) shouldn't have a big valuation either. My point is that Slack has taken technology which has been around a long time, made it fun and usable so people use it, and most importantly they've got people to pay for it. GP's comment was dismissing Slack purely because of the tech.
simonrobb··on Slack Said to Draw Interest from Amazon
I'm sure most entrepreneur types run off the "thrill of the chase", and a big exit would momentarily dilute the initial mission. But you are waayyy overstating that effect.

You've suddenly got a massive amount of capital to execute on the things you've been dreaming up along the way but have never been able to do before. Zuck sure had a company of thousands of employees to look after. And even if your mission was always just to exit... get a new vision.

Do I really need to invoke Elon and his first acquisitions here?

simonrobb··on Slack Said to Draw Interest from Amazon
A glorified IRC client built on web tech... that everybody uses. Tech is only one small part of a business. Slack provides real value to millions of people, $9B certainly doesn't seem an unreasonable valuation to me.
simonrobb··on How Australia Bungled Its $36B High-Speed Internet Rollout
I live five minutes' walk from the Melbourne CBD, and we have no indication NBN is going to be rolled out here any time soon.
simonrobb··on Great Barrier Reef at 'terminal stage'
John Clarke is a satirist, who played the role of whichever government official was topical at the time for decades. Not an actual government official.
simonrobb··on Ask HN: Other communities like HN?
Early days yet for #feedit, but if enough people join the conversation it's going to be a great community.
simonrobb··on Ask HN: What is the most important publicly unknown fact in your industry?
I'm not an engineer anymore, but at one point I was doing a lot of structural analysis in Excel. When we found the existing spreadsheets (purchased) weren't good enough, I wrote an entire library of analysis and design spreadsheets, the most complex being for the design of reinforced concrete columns: hundreds of lines of VBA, and only lots of recursion could crack this stuff without support for symbolic calculus.

This is pretty common practice, in Australia at least.

simonrobb··on YC AI
More than happy to start a conversation with them; also feel free to pass on my email: simon at touch dot farm.

Interesting thoughts on the reusing the waste. I toured the Carlton United breweries the other day, and found out it's their waste that has formed the basis of Vegemite since its inception. i.e.: there are massive wins to be made when you can "close the loop" on food production. When you've got production, processing, and reuse all under one roof like you could with vertical farming - gold.

simonrobb··on Analyzing electric utility data using machine learning
That's a shame, because it is otherwise an interesting and informative article for entry-level ML. It's just really, really poorly framed.
simonrobb··on Analyzing electric utility data using machine learning
Beat me to it. Strongly agree.
simonrobb··on Analyzing electric utility data using machine learning
It's a great effort here and I appreciate the post, but I think the title is a little misleading. There's a whole lot more to a company, let alone a $500MM company, than its tech/product. It's like saying you reverse engineered a kettle and now you're Breville. Consider team, brand, adoption, supporting infrastructure/marketing channels/processes/etc etc etc.

I apologise if this is nitpicky, but I think a more accurate description would be "I reverse-engineered a $500M AI company's algorithm in one week".

simonrobb··on YC AI
Interesting to get that perspective. I'm based in Australia, which has a similar farming landscape to the US/Canada; I'll admit my view is probably a bit skewed.

Is rice agreeable to vertical farming? i.e.: could the bulk of China's crops be moved to VF? In my understanding it's typically a hydroponic practice, so I imagine so.

simonrobb··on YC AI
That's a good point - the choice of crop will have a large bearing. I don't know if low margin crops like grains could provide an adequate ROI given electricity costs etc, let alone the outlay required to build structures over huge areas.

In my understanding vertical farming is usually a hydrocultural practice (doesn't use soil). That works well for a lot of horticulture, but not so much for broadacre crops.

simonrobb··on YC AI
Why vertical farming specifically? No doubt vertical farming will form part of the solution to feeding urban populations in the coming decades, but the area covered by open-air "horizontal" farming is immense. We just can't do construction on that scale, not to mention the incredible environmental impacts. Growing things with LEDs seems pretty wasteful when we have a great big star shining down on us all day. Vertical farming will bring fresh food to high-density populations for sure, it just isn't going to change the face of farming across the planet.

Although it's a much more difficult problem to solve being an uncontrolled environment, my company is working on this automation but for traditional farms (http://touch.farm). The first step is gathering rich data from different crops/climates, which is why we're starting by designing the cheapest and most usable ag sensors we can. If we can make sensor tech accessible to a wide range of farmers, we'll gain a rich enough dataset to start applying ML (and farmers and the environment win in the process).

tl;dr: vertical farming is great, but what we really need is innovation/investment in traditional farming.

simonrobb··on Tesla to raise $1B
If the solar plan falls apart, electric cars would prop up the coal industry better than gasoline cars. The electric cars you charge from your wall outlet will be powered by coal, no?
simonrobb··on No tipping means better business
Tipping is a thing in Australia, but it's not the pseudo-compulsary thing it is in the US. We do pay significantly higher hospitality wages here; nobody is going to starve if you don't tip, and nobody is going to hold it against you. However if you receive excellent service, it's customary to demonstrate your thanks with a bit extra on the bill, and it will be appreciated.
simonrobb··on Angular 2 Final Released
I've just finished my first major redux project and found it incredibly slow to develop with. Write an action type constant/action creator/dispatch/reducer/mapStateToProps just to show an element in response to a mouse click? I found myself cutting corners on the UI because the amount of code I'd have to write makes it seem like a huge task.

I'll be evaluating mobx for my next project, definitely, along with Relay. If I can maintain the same view-as-a-function-of-state approach of redux while writing less code, I'm sold.

simonrobb··on Request For Research: Basic Income
I read this a few days ago and learnt a lot. It might shed some light on why some countries' banking systems are slower than others https://getmondo.co.uk/blog/2016/01/20/how-do-bank-payments-...
← PreviousPage 3 of 5Next →