kravietz 🦇 @kravietz@social.privacytools.io

EU’s refusal to permit #gmo crops led to millions of tonnes of additional CO2

🤷‍♂️ 🍀

https://allianceforscience.cornell.edu/blog/2021/02/eus-refusal-to-permit-gmo-crops-led-to-millions-of-tonnes-of-additional-co2-scientists-reveal/

If you're confused too, don't be like #facebook - watch my video from OWASP AppSec 2018 where I went into details how these two are different:

https://scitech.video/videos/watch/38bc6082-c97a-4422-bbb5-5a96d94f8603

What they dump is *binary* representation of UTF-8 *encoded* Unicode character U+105 (LATIN SMALL LETTER A WITH OGONEK) but with \u prefix that confuses decoder into thinking it's *two* Unicode character with code points U+C4 (LATIN CAPITAL LETTER A WITH DIAERESIS) U+85 (NEXT LINE).

They totally confused the concepts of Unicode *codepoint* (the number of a character in the Unicode catalogue), and character *encoding* (one of possible binary representations of the character).

#facebook 🤦‍♂️ When you dump your data prior to deleting your account, you get a nicely looking ZIP with JSON, JPG, MP4 etc.

I've started importing that into ElasticSearch so that all the valuable 10 years old arguments aren't lost etc etc.

This is a fragment of text in Polish taken from the dump (JSON-encoded Unicode):

nios\u00c4\u0085 za sob\u00c4\u0085

Comes out, Facebook screwed up character encodings in their internal representation 🤦‍♂️

@scully

Fantastic place!

I guess Yagi on the barn should do the job, especially if you have strong AP on the house.

@scully Ah ok, but you do have power in the barn? In such case I'd just go for a directional WiFi antenna (like Yagi) on both ends. No need to top class, 200 m is nothing unusual for WiFi bridges. On both ends you can use TP-Link or OpenWrt WiFi access points, even the cheap ones, you just need one in Access Point mode, the other in WiFi client mode. Chances are it would even worth with directional antenna on the house, but signal may be patchy during fog etc so when you need monitoring most.

@scully

If it's just a single PoE, why not long Ethernet cable from wherever the main Internet connection is? Because you still need the PoE cable, so why not send data over it?

Ubiquity is fun but expensive and in addition to the transmitter you also need a computer (read: RaspberryPi) to run controller on. Mesh generally make only sense when you have a number of these, repeating signal between them, not just a single one.

@scully

What do you need in the barn in terms of client devices - one WiFi camera, a dozen of them?

@isagalaev What did you use to bridge them?

@1010101 @lunch

I'm just reading about the concept of L2 and it seems like #Ethereum community finally discovered that the usual mantra "do that on blockchain" isn't always the best solution for many reasons. Basically L2 is a nice name for doing things without blockchain (you could even say: "regular computation", as in L2 channels), and then only submitting the final result for the sake of keeping audit trail.

https://ethereum.org/en/developers/docs/layer-2-scaling/

#DNSSEC, systemd-resolved and general user friendliness

https://krvtz.net/posts/dnssec-systemd-resolved-and-general-user-friendliness.html

@lunch

Thanks, that's very useful. I'm not watching the ETH world too much, just trying stuff that I find interesting and ENS was certainly one of them. Handshake also looks interesting and I'll give it a try. To be honest however, Gnunet GNS seems just as good from the functional point of view and without the whole massive blockchain overhead.