benjhm

This idea makes me think, that if those 10 billion were spread more evenly including deserts and wet-deserts (much of tropical ocean lacking nutrients), maybe there would be space, but then fundamentally the challenge is not flying machines but self-sufficient biospheres. If that size bubble really worked, same could float or crawl on the surface. Except that somebody controls the surface, however even your dream machine leaves a shadow there. But I'm sceptical about "claustrospheres" (did you read "This Other Eden"?).

Hmm, fun idea, but imagine if it became preferred lifestyle for 10 billion people, air-traffic control could be interesting... Solar Impulse got around the world, but it did land plenty of times. By the way to fly quietly and freely just try paragliding, with evening lift very peaceful.

Some of them, effectively, do that, but the news in this case is that it failed to pass - as republicans have a big majority, that implies that a significant fraction of them were persuaded to see a little sense.

Indeed it has always been worth fighting for every 0.1ºC, and round numbers of degrees were always arbitrary political targets. Remember also that as well as the peak temperature,

• The rate of warming also matters - especially for ecosystems to migrate and agriculture to adapt
• The integral of warming also matters - especially for ice melt and sea-level rise
• Other issues matter - models paths strictly below 1.5C mostly achieve this with BECCS, competing for land with biodiversity and food production.

Many scientists have long concluded privately that the world will at least temporarily miss that target.

Yes, that's true, if you define it strictly. I've left the default in my model (which doesn't include BECCS) at 1.75ºC for years now. Earlier, the default was 2ºC, and it/I was the first to analyse that probabilistically (2003), indeed maybe this helped in pushing the shift to 2ºC from x50ppm concentration targets we had before that. Don't get me wrong - I was wearing those "1.5 to stay alive" badges in COPs 15 years ago, before it was common policy, and contributed to the 1.5C conference leading to the IPCC report. However I observed that China never agreed to this - it was very hard to get them to agree <2ºC, and nor did India - despite being urged to do so by all its smaller neighbours. Without those two on board we had little hope. Staying well below 2ºC is different - they all agreed to that, and their actions are plausibly approaching consistency with that (that doesn't apply, of course to the arabian-gulf petro-states, nor to russia). However 2ºC probably won't save the Greenland and West-Antarctic ice, without which bye-bye to Shanghai, Tianjin, Mumbai, Kolkata, etc.. So I guess we'll all keep trying, but increasing numbers will have to relocate - I consider (pending how this COP goes) whether to shift to analyse such migration, rather than continue with detail on mitigation policy.

Hi, thanks for the encouragement, delayed response due focusing on the code, and a related conference, and now trying to keep up with the COP. As it happens, the "ratchet" system of pledges created in Paris (COP21) is an iterative algorithm - start with wild guesses and gradually improve them by feedback - this made sense given the weaknesses of diplomacy, but it’s hard to summarise this mess with neat code in a compact model.

I don't do pure FP, but do value the scala concept to write immutable by default unless there's a good reason not to (usually efficiency, inner-loop stuff). While refactoring old code (most was originally java) I gradually convert vars to vals, but the old mutable code still works too, it's multi-paradigm. What matters most for reasoning is readability, scala3 really helps with this.

Well, for example if I could reply to a mastodon post from my lemmy account - the poster would see that there (not here - but could show up on my profile page), and might follow it, so it could gain followers. To write such a reply, I'd need to somehow view the original post while logged into lemmy. My comments here do federate to mastodon, and if somebody searched for related words (at least from the instance from which I followed my #lemmy account) they should find this. Your "virtual community" seems like a mastodon list (I have a dozen such topic lists, that system could be better, but is improving), indeed it would be helpful to consider that alongside a lemmy community for similar topic.

You are right, but these numbers are intrinsically affected by value-judgements - about how to integrate impacts over time, across different sectors, across rich and poor countries/communities and over probability of such impacts (risk aversion). It's not so much the science changing, but the values - hence political shifts. It would help if experts could separate these factors more clearly. For example people mention "the discount rate", but there is not just one - there is a (low) pure time preference for the whole world and higher rates for individuals and companies with finite lifetimes, also higher in rapidly developing countries (this does make sense, given a non-linear welfare function).

the Lemmy devs tell you to use Kbin or Mastodon or anything else

So to reply to Nutomic's closing remark on github:

I dont see why Lemmy should also implement that.

Because - if I could post to Mdon or reply to a Mdon post from my Lemmy account, some Mdon users (more numerous) might think - hey that's interesting, I'll follow that guy, then see my other posts to Lemmy, click and open up the whole thread (yes that works), and so eventually come to contribute to Lemmy too.

I don't find that - using Mastodon (4.2) I can see threaded discussion in Lemmy - each comment as a post - but have to start somewhere.

I succeed to follow my own Lemmy account from my Mastodon account, it works (initially seems empty, but new posts/replies show up later). From there I could potentially boost or reply. If somebody clicks on my comment in Mastodon, they'll find the whole Lemmy thread. This should help (more numerous) Mastodon users to discover Lemmy.

I discovered Lemmy via links from Mastodon, and so found i prefer these threaded communities. Nevertheless individual "status" posts have a purpose too, we need both topic-focused and people-focused structures, these should overlap and connect better.
As my Mastodon account follows my Lemmy account, my posts/replies get into that system, more might be discovered if I included hashtags here. However I can't do the reverse - follow a Mastodon account, or reply to or boost a post, from Lemmy. Communities might grow more if we could enable such interaction.