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Comment by gavmor

11 hours ago

Ugh, makes my skin crawl, it's so chaotic! And delicate-looking!

I feel that, too. And the speeds those move at! There's a spot in the video where it refers to "real-time" replication of DNA, but that has got to be more like "sped up until smooth". Miles of DNA aren't getting reproduced in a few minutes at that speed.

One thing that these animations always remind me of is that speeds at that level are tied to size. We're use to a world where birds and cars are faster than pollen and insects (mostly), but the fidgety twerking of all those big proteins is due to collisions with higher-velocity, invisibly small molecules like water (Brownian motion). When was the last time a pollen grain made you flinch? Everything is kinetic/EM energy exchange; everything is in the gray area between Newtonian and quantum physics. (Shout out to Einstein, but also Boltzmann through Dirac.)

  • > Miles of DNA aren't getting reproduced in a few minutes at that speed.

    I didn't get the "miles of DNA" reference. A single strand of DNA is approx 3 meter in length when uncoiled. Now I'm thinking how many strands may be replicated at a time.