stravanasu

  • 23 Posts
  • 118 Comments
Joined 1 year ago
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Cake day: July 5th, 2023

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  • It’s utter bullshit from the very start. First, it isn’t true that the Ricci curvature can be written as they do in eqn (1). Second, in eqn (2) the Einstein tensor (middle term) cannot be replaced by the Ricci tensor (right-hand term), unless the Ricci scalar (“R”) is zero, which only happens when there’s no energy. They nonchalantly do that replacement without even a hint of explanation.

    Elsevier and ScienceDirect should feel ashamed. They can go f**k themselves.



  • stravanasu@lemmy.caOPtoFediverse@lemmy.worldMatrix let-down
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    19 days ago

    I’ve tried different clients: Element web, desktop, and android, and FluffyChat desktop and android. The problems seems to come, as other have written, when the matrix.org server is involved: it’s people from their handle there which experience glitches joining rooms in other servers. It seems this “part” of the fediverse still needs a lot of development.













  • As most who have already commented here, I’m somewhat unimpressed (and would expect more analytical subtlety from a scientist). Wittgenstein already fully dissected the notion of “free will”, showing its semantic variety of meanings and how at some depth it becomes vague and unclear. And Nietzsche discussed why “punishment” is necessary and makes sense even in a completely deterministic world… Sad that such insights are forgotten by many scientists. Often unclear if some scientists want to deepen our understanding of things, or just want sensationalism. Maybe a bit of both…