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Joined 2 years ago
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Cake day: July 10th, 2023

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  • Nuanced take coming, take a breath:

    I agree that Child Sexual Abuse is a horrible practice along with all other violence and oppression, sexual or not. But the attraction de facto exists and has done for thousands of years, even through intense taboos. It seems our current strategy of shaming and ignoring it has been ineffective. The definition of insanity being repeating the same thing expecting different results and all that.

    Short of eugenics (and from previous trials maybe not even then) we might not be able to get rid of it.

    So when do we try other ways of dealing with it?

    I’m not saying generative AI is the solution, but I’m pretty sure denying harder isn’t it.




  • Article is capped at 18 views/day so can’t see numbers.

    But theoretical cap of energy would be something like E_kin = (\gamma -1)mc². Without knowing anything about the mission or engine, a 50 kg probe at a velocity of .9 c means an energy requirement of about 1,0e19 J.

    Fusion of H2 to H3 yields about 340e9 J/g meaning we need about 3 million kg of fuel at 100% conversion rate, or a third if we manage He3 reaction.

    Realistically heating, engine efficiency, deceleration, vibrational damping and such would probably lower efficiency to at most 40% and we end up at 8 million kg of fuel to propel a 50 kg payload (not counting the fuel mass).

    Seems unfeasible.

    Edit as @[email protected] kindly provided an alternative link.

    Article only says doubly efficient, and H2 to He3 reaction.

    To get to .9c we still need a couple million kg of fuel.

    Even .1c needs about 40 000 kg of fuel, which is doable, but probably unfeasible.

    0,05c should be in kgs range, and is probably plenty (100 km/s).











  • That’s assuming a lot of ifs resolve our way, and without power needs increasing. It’s more sustainable than coal/gas/oil for sure, but with current energy development needs it’s barely long term (IIRC about 60-140 years)

    Also, on centuries timescale, we will need to find more fissiles in space. And according to our current understanding of the universe, they should be quite rare, especially compared to hydrogen.

    Basically, figuring out fusion power would solve our needs for the first level on the Kardashev scale, and has the potential to be portable fuel for the rest of the lifespan of the universe.




  • The whole reason that it works is because the company can’t afford to lose everyone who’s not complying.

    But promotion blocking seems like a weak move. If returning to office is enough of a workplace issue to be a deal breaker, threatening people with not taking extra responsibilities or challenges seems like a losing proposition. They’re already willing to lose their job over the issue, and you’ve shown that you can’t lose them, so now you’re gonna make it shittier to remain at the company?

    And even besides the perspective that promotions are a benefit, many roles are in place for the company’s sake, to stay organised, are they now gonna not fill those? Or only fill them with external applicants?

    Or is the idea to only promote the compliant ones? That would make some sense, at least.