Putnam3145
Putnam3145 t1_iyz4ja8 wrote
Reply to comment by PrimeInsanity in Do we have any compounds or materials on Earth that compared to the rest of the universe is incredibly rare? by SwordArtOnlineIsGood
> and tree like species dont evolve at rate that puts carcinization to shame.
I mean, they definitely do. Every crab you see is in the same order, decapoda, while trees are all over the dang place; they've convergently evolved far, far more often than crabs could ever hope to.
Putnam3145 t1_iuayg6d wrote
Reply to comment by PM_Me_Frosted_Tits in Is dark matter orbiting galaxies with the same speed as normal matter? by taracus
Interstellar medium undergoes more friction than our observations would allow.
Putnam3145 t1_j0g7zxw wrote
Reply to comment by wasmic in Does rotation break relativity? by starfyredragon
A perfectly rigid object has a faster-than-light speed of sound, among other problems, and is thus unphysical