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invisiblerobot

142 karma · joined July 16, 2019

Senior Engineer with Invisible Robot
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invisiblerobot··on The rate of obsolescence of knowledge in software engineering
https://youtu.be/V6ZPg6kOBkc

Sowell discussing common falacies about race and economics

invisiblerobot··on Hash Array Mapped Tries (HAMT) to the Rescue
Clojure has an implementation of these in java.
invisiblerobot··on Using Clojure in the command line with Babashka
The startup time of the jvm is negligible. This myth keeps coming up. Most of the startup time is Clojure itself.
invisiblerobot··on Unofficial Guide to Datomic Internals (2014)
Also look into open crux
invisiblerobot··on Datahike: Durable Datalog database powered by an efficient Datalog query engine
>>> but for external access it was not clear how to limit the queries to the parts of the database the user had permission to view.

You can filter your entire db on the server to only include a subset of datoms

invisiblerobot··on Google reportedly keeps tabs on usage of rival apps to develop competitors
If you believe regulation to be ineffective then why advocate for it at all?
invisiblerobot··on Good writing is a business advantage
Well written.

Two excellent books are The Elements of Style and On Writing Well.

invisiblerobot··on Radio listening booms while music streaming stalls
Cash is taking a hit? USD is the only asset increasing in value.
invisiblerobot··on Covid-19 stats for The US and Canada
Canada has 1/2 the cases and 1/4 the deaths per capita. What is the difference?
invisiblerobot··on Ask HN: How can a intermediate-beginner learn Unix/Linux and programming?
I disagree. That's the way all business works. In the beginning.
invisiblerobot··on Ask HN: How can a intermediate-beginner learn Unix/Linux and programming?
I agree you need to use it daily but disagree that an Ubuntu desktop provides any real insight.

Here's some BASIC questions an ubuntu user might never encounter:

Which processes are currently hogging the CPU?

Which ports are currently open?

How do you setup a remote git repo and/or add a user for limited ssh?

How do you increase an existing swap part without locking the CPU during write at peak loads?

How do you exclude/include packages from being autoupdated on apt update?

How do you ensure opaque crontabs aren't silently failing?

My advice: Setup a Linux server on aws or whatever for a paying customer with medium load. Only the stress of respondong to actual downtime will teach you anything useful.

invisiblerobot··on Ask HN: How can a intermediate-beginner learn Unix/Linux and programming?
C is way more concise than Java. It's one of core 5 in any journeymans toolbelt.
invisiblerobot··on NBA suspends season over the coronavirus after player tests positive
Syphillis does that. Lowers the hosts inhibitions and increases their risk seeking behaviour.
invisiblerobot··on Alcoholics Anonymous vs. other approaches: the evidence is now in
A fantastic book and complete alternative to the AA approach is Allen Carr's Easy Way to Control Alcohol. It focuses on the reasons TO drink which is unusual. And it does a good job of dismantling them.
invisiblerobot··on Tips for the depressed
I've had severe depression my whole adult life and this is what has worked for me:

1. Zero alcohol. 2. ICE cold showers. 3. Extreme cardio. 4. Meditation. 5. Breakfast with a friend. 6. Play with a big young dog. 7. Cognitive Behavioral Therapy. 7. Meds. 8. Get up at 5am. 9. Journal.

Feeling Good is one of the best books on depression from a scientific perspective.

invisiblerobot··on Spot the Drowning Child (2015)
>> Is it really "exploitation" in the human sense of taking advantage of someone else?

Yes. Obviously. And whether or not the exploitation is "programmed" is irrelevant. After all everything is programmed.

invisiblerobot··on Request Node lib used by 48k modules is now deprecated
what??

You can deposit without a pin bit to withdraw you need photo id and a verbal password or pin in every bank I've ever been in

invisiblerobot··on Ask HN: cloud data storage cheaper than AWS S3?
no cheapest deep archive is 0.0007 per gb month, or 70 cents per tb/mo

note they've recently reduced their pricing so you might be looking at old marketing. But my latest bill charged me 0.0007

you're right of course that retrieval in an out is much more expensive and so prob not a great fit for your usecase

invisiblerobot··on Ask HN: cloud data storage cheaper than AWS S3?
s3 may be cheaper than you think.

If you're willing to tolerate hr+ delays in accessing your data aws glacier deep archive is 70cents per terabyte month.

that's pretty awesome in my book.

If you need to access the data in under an hr it comes out around $2 per TB/mo

invisiblerobot··on Passionate kissing is not a human universal (2015)
No I was just joking.
invisiblerobot··on Facebook quitters report more life satisfaction, less depression and anxiety
Even "good" "productive" things like YouTube videos contributed massively to my depression. Cutting off YouTube was the real kicker that changed my life for the better.

That constant dopamine cycle...might as well just do coke and at least have great sex :)

invisiblerobot··on The Web Application Messaging Protocol
confusing name since wamp is a Windows stack for apache, mysql and php.
invisiblerobot··on “We already store data. In a database. It works well”
aren't you describing litecoin?
invisiblerobot··on What can you use instead of Google and Facebook?
I'm in Mexico City and spent the last 6 mos in Columbia and What's App is EXCLUSIVE in the latter and completely dominant in Mexico. Nobody uses SMS.
invisiblerobot··on Cryptocurrency in the 2020s
>> You'd have to hire an auditor to verify the blockchain software too

No. You wouldn't.

invisiblerobot··on Lisp Macros by Example
Creating languages in Racket

https://queue.acm.org/detail.cfm?id=2068896

invisiblerobot··on Google bans niche browsers from Gmail?
Maybe you just suck at Excel ;)

https://youtu.be/0nbkaYsR94c

invisiblerobot··on Building a CRUD App with Datomic Cloud Ions
Performance is brutal though. For a moderately sized db client side datascript can be 100ms per interesting query unless you drop to indices. Might as well just do a server trip.

I had a beautiful dream of just streaming datomic out to datascriot but eventually gave up and went back to client side maps using reframe.

If Cognitect would release a performant JavaScript peer that would be a game changer for web dev. Just one db and effortless event streaming to and fro.

invisiblerobot··on Show HN: Spider Pro – easy and cheap way to scrape the internet
Which is why any serious effort involves rotating pools of proxies.
invisiblerobot··on The 2002 mandate for internal communication systems at Amazon
Isnt that competence?
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