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orb_yt

119 karma · joined March 22, 2016

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orb_yt··on Startups that launched today at Y Combinator’s S18 Demo Day 1
I was surprised to see Alpha Vantage[0] on this list. As far i'm aware, they provide real time access to stock prices, and their service is free. Additionally, other services [1] exist that do the same, which are also free.

How might they turn their service into a viable business?

[0]: https://www.alphavantage.co [1]: https://iextrading.com

orb_yt··on Chatbots were the next big thing: what happened?
There's a lot of discussion here about hype, but I think many are overlooking exactly why expectations were so high.

Downloads of new mobile applications have been decreasing in growth steadily for years now[0]. Instead, user's spend more time inside their existing applications, particularly messenger applications. Take a look at just a few of their user bases:

  - Facebook Messenger - 1.2B+ [1]
  - Whatsapp - 1B+ [2]
  - Kik - 300m  [3]
Considering that writing a single bot that was capable to connecting to all of these platforms was trivial, it gave the developer access to a new and very significant user base.

Add to this the fact that Facebook, Google, Microsoft, Slack and others, with a combined market cap in the trillions, were simultaneously contributing to the support of chatbots in one way or another.

It's a classic rendition of the Hype Cycle[4]. We're probably somewhere in the "Trough of Disillusionment", but give it a few years and we'll get to the "Plateau of Productivity", and chatbots will probably make their way to a more useful purpose.

[0]: https://techcrunch.com/2015/09/29/forget-apps-now-the-bots-t... [1]: https://techcrunch.com/2017/04/12/messenger/ [2]: https://www.theverge.com/2016/2/1/10889534/whats-app-1-billi... [3]: https://techcrunch.com/2016/05/11/kik-already-has-over-6000-... [4]:https://en.wikipedia.org/wiki/Hype_cycle#/media/File:Gartner...

orb_yt··on Chatbots were the next big thing: what happened?
Glass wasn't hype by any means, it just didn't take hold in the consumer market (which, who's to say Google didn't predicate that). It's been in use by massive enterprises for years now, from Boeing to GE to large healthcare organizations.
orb_yt··on Ask HN: How do you feel about Slack developer communities?
Was this on freenode? What channel?
orb_yt··on Wristband Lets the Brain Control a Computer with a Thought and a Twitch
Definitely read that as Twitch.tv.

Oh the ideas...

orb_yt··on Facebook denies it collects call and SMS data from phones without permission
> The phone/call permissions, especially for Android, were needed for any app that wants to suspend when a call comes in.

No they weren't

orb_yt··on Launch HN: Medumo (YC W18) prepares patients for surgeries
I'm interested in hearing your thoughts on the current state of healthcare software.
orb_yt··on Companies from the YC Winter 2018 Batch
I think it's a pretty well known fact that YC tends to invest in companies that have the opportunity to be billion dollar ventures.

> What you're doing right now isn't necessarily the thing you end up doing in the long term.

What sort of opportunities do you think a company like Buglife could focus on?

orb_yt··on Companies from the YC Winter 2018 Batch
I love Crashlytics, it was a great success and continues to be an awesome service. However, this comment highlights my question. Crashlytics was an early "first mover" in this area, has been a goto for developers for years now, and could likely be considered as a "best case" scenario for this type of software. Yet, it was acquired for far less than a billion dollars.

My original comment was in regards to the well known fact that YC tends to invest in companies that have the opportunity to be billion dollar companies. In fact, it's a known question during interviews[1].

So, my question is what do these founders say when asked this question? What possible paths are there to a billion dollars for this type of company?

[1] https://www.indiehackers.com/businesses/coderpad

orb_yt··on Companies from the YC Winter 2018 Batch
I'd love to hear some discussion on the following:

I really like developer focused companies like Buglife. However, what path could Buglife take to reach a $1B dollar company?

The post notes that they are currently in 300 apps. I'd assume the majority of these 300 are on a free plan. Let's assume that they hit a growth spurt and end up in 10,000 apps. Let's also assume that every one of those customers is paying for their Premium plan. That works out to a little over $2 million a month in revenue.

Not only that, but there are already very established companies in this space (Fabric/Crashlytics, Firebase, Sentry, etc.). It's also fairly trivial to switch to another provider.

How do companies like this propose they hit that $1B mark?

orb_yt··on In just 24 hours, 5,000 Android devices are conscripted into mining botnet
Anyone care to guess how this is done?

The only way to open up ADB over a wireless connection is to set the device in tcpip mode on port 5555 and then connect via adb using the device's IP and the mentioned port.

However, adb is not shipped on Android devices (though adbd is). How is it that a malicious device can install an application on another device as claimed by the article?

orb_yt··on Improving app security and performance on Google Play for years to come
> you didn't have to ask users for permissions to access contacts, sms, SD card and other data

This isn't true. Android 6.0 introduced runtime permissions, where permissions could be granted in the context of the application. Previously, the permissions still had to be granted, but they were granted before the application was installed.

orb_yt··on OpenEMR is Accepting Donations on OpenCollective
> physicians hate them, and many blame them for the massive increase in physician burnout over the last few years

It's funny, I assumed the same. I then asked a few who used the product, and was surprised to hear praise for Epic. I wonder if the product has actually improved, or if users have simply conceded.

orb_yt··on Does China’s J-20 rival other stealth fighters?
Fun little note: The afterburning turbofan engines used in this aircraft are supposedly similar in performance to the P&W F119 engines used in the Raptor. The company behind the engine is/was working on a high bypass version which aims to power the Y-20 [1]

[1] https://en.wikipedia.org/wiki/Xi%27an_Y-20

orb_yt··on Does China’s J-20 rival other stealth fighters?
Of course it flies: https://www.youtube.com/watch?v=VyCagF0RUQQ
orb_yt··on Show HN: Airmash – Multiplayer Missile Warfare HTML5 Game
How long has this been released? Seems very polished. How long did it take you to build?
orb_yt··on Modern Front-end in Rails
> JS doesn't really have an equivalent to Rails (that I know of).

Probably Meteor, though not as mature as Rails.

orb_yt··on Why Education Startups Do Not Succeed (2011)
They started off with a business model which entailed having users translate documents for partners. Last I read, they have pivoted to using ads and in app purchases, along with charging for certifications. I don't know whether or not they are turning a profit with these methods.
orb_yt··on Why Education Startups Do Not Succeed (2011)
I do think that the overwhelming majority of Duolingo users are likely learning on their own volition, rather than for their job.

> While it is “teaching,” it’s also squarely in its own domain

Could this idea simply be because, for the most part, language learning applications have been the most successful? Other than Khan Academy, which is mostly videos, i've never heard of another company building similar products for other subjects.

I'm not sure whether it's because the market doesn't exist or that it hasn't been tried.

orb_yt··on Why Education Startups Do Not Succeed (2011)
Yea, i'd love to know what their revenue numbers are.
orb_yt··on Why Education Startups Do Not Succeed (2011)
I understand this article is a bit outdated, but companies like Duolingo or Clever seem to prove a few of the author's arguments wrong.

One would think there would be a market for Duolingo style apps for other subjects, such as mathematics, where the user is simply charged on a subscription bases. Could such a business not survive?

orb_yt··on Steve Wozniak announces tech education platform Woz U
Any thoughts on what that would look like? I'm very much a fan of bite sized lessons (think Duolingo style), but am curious to how well that would translate to other subjects.
orb_yt··on Steve Wozniak announces tech education platform Woz U
That looks to be just an internship.
orb_yt··on GitHub Discover
For those wondering i'm assuming it's this repo: https://github.com/OpenRCT2/OpenRCT2

It looks like it requires a local copy of the original Roller Coaster Tycoon 2 to work. Why is that?

orb_yt··on Dropbox taking entire building in Mission Bay – biggest lease in city history
Is there a directory of these?
orb_yt··on React 16
Lovely. The file size reductions are quite surprising.

Removing the need to wrap sibling elements in a single parent element is a welcome change.

I'd be interested in hearing some use cases for using the Portal API.

Lastly, the new licensing announced last week was fantastic news. I commented on last weeks thread, but I want to extend another round of compliments to Facebook and the React community as a whole for prompting this change. Props to them.

orb_yt··on Relicensing React, Jest, Flow, and Immutable.js
Kudos to Facebook and the React community for prompting this change, this was the right move.
orb_yt··on Launch HN: ShiftDoc (YC S17) – On-demand healthcare staffing marketplace
Love it. I have quite a few family/friends in the healthcare industry..i'll have to ask them whether or not they would find something like this useful.
orb_yt··on Ask HN: Which sites you visit on a regular basis for knowledge and inspiration?
https://xkcd.com/214/

An interesting side note: if you repeatedly click the first link at the beginning of any wikipedia article (except links in parenthesis) you will always end up at Philosophy.

orb_yt··on Earth is a ‘dwarf planet’ because it has not cleared its orbit
This is called Hydrostatic equilibrium[1] and is one of the factors at play when determining if a body is a dwarf planet/planemo.

[1] https://en.wikipedia.org/wiki/Hydrostatic_equilibrium

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