kravietz 🦇 @kravietz@social.privacytools.io

How behaviour of math functions in #javascript is undefined and changing ¯\_(ツ)_/¯ https://macwright.org/2020/02/14/math-keeps-changing.html

"Are bigger populations more innovative? Let's look at a few papers emphasizing the distant past to see what they say."

https://threader.app/thread/1228087002513301504

@artsyhonker Ha, if I don't do enough exercise my lower back muscles contract (a typical IT chronic issue) which is... painful! A very good motivation indeed.

@artsyhonker I think it's important to do both - or generally, as many diverse physical activities as possible. Cycling is fast and easy... too easy actually :) At least once per week I try to make a long walk too. And mountains as often as time allows.

@artsyhonker In Reading (where I live) and London (where I work) bicycle is also usually the fastest way to move from A to B for typical town travel.

@artsyhonker No need to convince me, I'm cycling everywhere anyway :)

@artsyhonker House insulation standards in UK are profligate and that's the primary issue I'd say. Most houses I've seen have thermal efficiency of a camping tent, so whatever ultra-efficient energy generation you'll use, it's going to heat the air above anyway.

@artsyhonker Microgeneration is good for energy efficiency. The energy stays where it's used, transport loss is minimal. Also by using rooftops for PV you use space that would be otherwise taken on land. Most (if not) all building however - residential, public and industrial - use way more energy than they are able to produce, so this cannot really replace grid..

These issues plague *all* engineering and always have. In long term, they can be solved. #Greenpeace and alike however like it black-and-white: solar is a pink unicorn that we just need to do more to get rid of #nuclear asap! This is where they hit the reality.

"Developers, contractors and bankers all struggle to come to terms with the risk of large power loss factors, grid stability problems, connection problems, and equipment performance issues … So we’re out."

https://reneweconomy.com.au/were-out-big-contractor-dramatically-quits-australian-solar-sector-33796/

@sheogorath

You can't really buy anything useful today with cryptocurrencies. After the initial euphoria most shops who accepted BTC stopped doing so due to volatility.

Unfortunately, as the euphoria passed, they haven't caught up with cryptocurrencies that were designed for stability such as DAI because it didn't work in the first place with BTC. So we have DAI that makes micropayments really easy, but nobody is accepting it :)

A bit silly, but this is how the market works unfortunately...

@Gina Unfortunately, there's a strong anti-rational trend going on right now. People prefer to believe any bullshit they read on Russia Today rather than engineers and scientists...

@amolith@masto.nixnet.xyz And you *can* do it using cloud APIs and Ansible or Puppet. It's just that amount of work involved deters people from doing it and makes them just use 3rd party like CF.

@amolith@masto.nixnet.xyz The second part is to keep bots away from your transactional part of website. Because you can cache static content but anything that is dynamically generated (eg Vary: Cookie) will just kill your database under DDoS.

Again, Nginx with conditionals, Lua, NAXSI or ModSec can help here, but you need to spin enough instances to be even able to handle the traffic on TCP level.

@amolith@masto.nixnet.xyz

So @rysiek may have interesting insight here as he wrote an anti-ddos suite for Nginx.

Aggressive caching and per-IP rate limiting are the first line of defense. What CF does in the first place is to ignore client website's Cache-Control headers and cache content anyway, and this works because most websites unnecessarily limit caching due to industry-wide obsession on unique hits.

“If Germany had decided in 2011 to phase out 20 gigawatts (GW) of coal plant capacity instead of #nuclear, it would have reached its #co2 emission targets and now could be rightly recognised as the European climate champion.”

https://www.nsenergybusiness.com/features/germany-nuclear-power-plants-2/