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tfolbrecht

296 karma · joined January 17, 2016

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tfolbrecht··on Credit Suisse Fund Liquidated, ETFs Halted as Short-Vol Bets Die
If you're using leverage, and not able to lose more money than the fixed amount of shares you purchased, how else would it work?

These instruments are a way to do fancy portfolio balancing, not bets and speculation. You'll need "real" leverage where you can come out in the negative instead of $0 to do that.

tfolbrecht··on Amazon announces candidate cities for HQ2
I think Miami would be good strategically for Amazons future warm-water port.

Joking aside, What sort of hoops do they expect these city and state governments jump through?

tfolbrecht··on Ask HN: What influenced your personal growth the most?
Epistemologically, the Internet: As a kid in rural Florida, it was the 3G usb modem that allowed me to use the internet at home. Hugely pivotal. I could browse Wikipedia, Hackaday, 4chan, etc when ever I wanted and I just started chugging.

Negative Socially: 2013, Getting wrongly charged of a crime, going to jail then having to fight it at 19. really altered my view on how just the world is. I was verifiably innocent and the ordeal was dragged out for six months. The terms of my bond made me lose thousands to drug tests and missed work, then the judge throws it out right before the trial. Still a little angry about it, but it really opened my mind to the idea of the social injustices the State can facilitate.

Positive Socially, careerwise: After that, being given the chance to run the local music store in my city. It was the Marching band and Orchestra sort. It really helped with social anxiety and learning to talk to people. Before that I would compulsively rehearse what I would say before I used the phone or approached someone. Dealing with people made me feel comfortable in my own skin.

Careerwise: At 22, I worked for one of the largest optical components and systems manufactures in the world assembling and testing lenses for the optics in one of Illuminas genomic DNA sequencers. Learned a lot about software, optics, manufacturing, Six sigma, Lean, corporate/ business stuff.

Career2.0: Starting a Startup. It's confounding, exhilarating, risky, and hard. The hardest thing I've done so far and I love every minute of it. I would shill it, but it doesn't face the public yet. I'm very proud.

It's been a journey, these are the moments I feel guided me to who I am.

tfolbrecht··on Warren Buffett: Bitcoin Is Pure FOMO
I appreciate the reporters critique, but what I believe they're missing is that there's an inherent value in the network and its market share in the space.

Bitcoin is not the check, it's the store of value and the bank. Bitcoin is the investors, developers, the miners, the ledger, wallets(accounts), the speculators, the store of value. Bitcoin is the headline maker in the WSJ, NYT, etc. That multilayered coupling is what makes BTC valuable.

The reporter talks about intrinsic value of companies, cash flow etc. The underlying healthy and stable economy is not some axiomatic truth. With BTC, You have all of the components to have currency emerge into existence and stay from bitcoins incentive system.

How much is it worth? That depends on what the alternatives are worth, and that evaluation changes every day. I hope it's long term near worthless, but you can never be too sure.

tfolbrecht··on Harvey – An effort to provide a modern, distributed, 64-bit operating system
What is OLE?
tfolbrecht··on Nvidia’s New Policy Limits GeForce Data Center Usage
Not all chips are born equal and that's why faulty/poor performance cores and components are deactivated and chips sold in tiers. Look into it, same silicon on paper, but not on silicon. The problem comes from those specs and the warranties, guarantees, consumer protection, etc.

So decide, overbuilt GPUs (more expensive), firmware gimped GPUs (less performant), or non warrantied( risky ).

tfolbrecht··on Nvidia’s New Policy Limits GeForce Data Center Usage
Typical HN kneejerk comments.

The GeForce series cards are designed, spec'd, priced for consumer usage. Nvidia has to warranty and guarantee what they sell, consumer confidence is important.

When you're doing ML or blockchain Proof-of-Work the card becomes a consumable. Is it fair for manufacturers to guarantee them like they would a consumer desktop or gaming GPU? You expect people who play with ML in their free time to subsidize your GPU cluster?

That said, hope this gets people angry enough to make TF support OpenCL. CUDA is too pervasive.

tfolbrecht··on People Don't Get the Link Between Meat Consumption and Climate Change (2016)
Feasibility for the individual is a matter of being able to afford meat that is currently 50 - 100% more expensive per comparable cuts.

Feasibility for society is complex. Where I live, grass fed cattle is mostly grown on short term leased land. Sellers and long term speculators of farmable land make cash on its interim usage for cattle. Non-feasible.

In Australia and NZ, there are huge chunks of the country suitable for raising livestock, not suitable for land development or plant farming. There's more livestock than people. https://www.youtube.com/watch?v=50MbPACZF-4 Australian outback cattle farmers mustering with helicopters

tfolbrecht··on People Don't Get the Link Between Meat Consumption and Climate Change (2016)
People still don't get that haphazard false equivalences weaken trust in media.

I live in the rural south. The cows in my lumpy unfarmable backyard eat grass. How is it a harmful practice? I can't convert grass to a complete protein source. Any link between wild game and climate change? Fishing?

Articles like this are alienating to the average person. Why not use this opportunity push more ethical options? Grass fed Beef, Wild game, carbon neutral feedstocks, locally produced, sustainable practices. Then your readers have a clear path to less harmful alternatives before converting to the 3 square soylents of the future.

tfolbrecht··on Algorithmia – Open Marketplace for Algorithms
Is there some legal/technical reason you couldn't encapsulate their APIs?
tfolbrecht··on Fast desktop-scale extrusion 3D printing
And if reliability is an issue, just stick another print head on to print a backup print in tandem. Can I be accepted into MIT now?
tfolbrecht··on Fast desktop-scale extrusion 3D printing
If you think that's a great idea, how about this one: Melt the plastic even faster than that. I'll be expecting my check in the mail.
tfolbrecht··on Finance Pros Say You’ll Have to Pry Excel Out of Their Cold, Dead Hands
I think "management" that think AI will be a viable replacement for financiers should be more afraid of being replaced than "finance pros."
tfolbrecht··on Jekyll Static Web Hosting – Deployment Pipeline on AWS
Looks good. gzip is implemented on cloudfront instances via a flag, so you can kill two todos by implementing it!

I wonder how much cool stuff you could add to this build gem. Minification, staging, SCSS, etc.

tfolbrecht··on Jekyll Static Web Hosting – Deployment Pipeline on AWS
To refresh the crawled cache the search engines have. I've never given it much thought, but I guess it would be refreshed when queried. I will add it to my bash script for funzies.

Here's the implementation in the sister comment: https://github.com/thom-nic/jekyll-s3_deploy/blob/master/lib...

tfolbrecht··on Jekyll Static Web Hosting – Deployment Pipeline on AWS
Cool! I could see why this would work well for teams and collaboration. Here's my hugo+aws pipeline for my personal blog.

Do editing, with hugo in server mode so I can WYSIWYG edit my pages. Then run a bash script:

   #!/bin/bash

   # build site from markdown + template
   hugo ~/sitedir/

   # post to S3 bucket which is a file storage service
   aws s3 sync ~/sitedir/public s3:sitedirbuckket --recursive

   # invalidate CDN distribution so content delivery is nice and fresh!
   aws cloudfront create-invalidation --distribution-id XXXXXXXXXX --paths /*

   echo -e "All done"
tfolbrecht··on No big deal, Boston Dynamics’ Atlas can perform backflips now
Why are so many users in the comments on here fear mongering? Don't you understand we already have dumb solutions for killing and making war? Bombs, bullets, Chemical and biological weapons, non of which need a complex robotic platform. How will human shaped robots change anything when we can build flying, hovering grenades and mass deploy them with COTS components?

You know what does need a complex platform like Atlas? Disaster Rescue, Medicine, Telepresence, Automation etc

tfolbrecht··on Bitcoin is a bubble, no plans to short-sell: Japan Post Bank CIO
Performing a short is a sort of counter to to-the-moon talk. If you look at the mechanistic properties and costs associated with shorting, you can see how far the person buying the short thinks the value is from open market value. If you were to bet against the sun rising tomorrow, the market would "bet" to the contrary and the short would be cheap and accessible.

It's not craps gambling, it's like betting on a boxing match. The bookie odds are based on previous records and some valuation model, you only come out ahead in the long if you have a superior valuation model, insider knowledge, luck, etc.

tfolbrecht··on Ideas on how to store energy
First we need excess energy to have a storage problem. Ignoring that, I think some market based mechanisms on the consumption side could gobble that capacity up.

If energy is a big enough input to some process like metallurgy, recycling, computation, etc in times of excess you could drop the price to the base mwh rate minus the cost of a theoretical amortized storage solution + transmission inefficiencies and give incentive to burn that capacity off.

Since we've already invented the economy, we can pass around excess money to use for on demand/scaling consumption instead of building big energy network storage and transportation and eating the cost.

In theory subsidizing scalable supplies with the fixed supplies.

tfolbrecht··on Ideas on how to store energy
That is extremely weird considering the frame etc has so much more mass.

Do you have some math on that?

tfolbrecht··on Ask HN: YC W2018 invites/rejections?
Either way I'll be sure to post here when I get the email! I submitted the application on the last day.
tfolbrecht··on Ask HN: Why are we as a society unable to account for negative externalities?
Let me rephrase this to annoy you. Why are we as a society unable to account for positive externalities?

They're externalities. You're probably wrong in the grand century scale scheme of things, heck you're probably wrong in the 5 -10 year scale of things.

tfolbrecht··on Ask HN: How do you maintain balance between learning and building stuff?
I suppose you're talking about software development.

When people use the word building like this it reminds me of that episode of Spongebob where he taps a block of marble once and out comes Michelangelo's statue of David.

If you're critical of your own work, building things will push you into deeper into your craft and into other domains.

How much to learn? Just enough to start with the use of references and examples.

tfolbrecht··on Pixel Visual Core: Google’s first custom-designed co-processor
A tag-a-long comment, this SoC + imaging system is going to make it much easier to write the software because you know all of the particulars of the optical system, sensor, position data, etc etc. It's not like implementing this stuff on the application layer which is nightmare mode difficult. Cameras are so fast, their controls are so fast, this is like some super human time dilation photography and photogrammetry.

I've held out for so long, it's finally time to replace my HTC One m7.

tfolbrecht··on Pixel Visual Core: Google’s first custom-designed co-processor
Consider how inexpensive and high quality modern image sensors are. With this SoC, you can use so many amazing image processing algorithms. ML based object masking, deconvolution, focus stacking, exposure stacking, sensor fusion like FLIR, frame stitching multiple cameras, color compensating in camera flash. For serious heavy lifting you can send these bundles of images to the cloud for processing. All done without any more user input than tapping the take photo button.

It's going to seem like magic to the user.

tfolbrecht··on GM exec calls Elon Musk claim of Level 5 driving without lidar 'not possible'
Tesla has back peddled on so many deadlines and claims without killing themselves yet, so we'll see.
tfolbrecht··on Skinner Marketing: We're the Rats, and Facebook Likes Are the Reward (2013)
Tinder only throttles the want-to-match swipe.
tfolbrecht··on GM exec calls Elon Musk claim of Level 5 driving without lidar 'not possible'
Level 5 possible without lidar: Tesla has a potentially less expensive driverless system

Level 5 impossible without lidar: Tesla licenses the tech and buys the hardware like everyone else

Looks like two upsides on this bet.

tfolbrecht··on Ask HN: What non-work task have you automated?
The inside of the roll has an NFC chip in it. The NFC has information on color, amount of filament left, temperature settings etc.

I call it DRM because you can't edit it without a reverse engineered NFC key.

Another side to the DRM thing is that if you use inferior input material and the printer has a quality issue, customers are going to blame the printer and not the filament.

Value added DRM I guess

tfolbrecht··on Ask HN: What non-work task have you automated?
It's an okay 3d printer. I use it for making toys, statues, etc. There are various companies that offer 3d printing as a service with different materials, precisions, surface finishes etc like stratasys, 3D hubs, xometry.

These printers are nice to prototype with before sending it to a more costly and less time investment forgiving production printer, or quick around the house jobs/play.

Feel free to reach out if you want help getting started: my username @gmail.com

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