• vithigar
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    5 days ago

    “Observable universe” isn’t how much we can see, rather how much it is theoretically possible to observe by any physical means.

    I also don’t think that water drop fact is correct. The estimated number of stars in the observable universe is 10^24, which is about an order of magnitude more than 1 mol, and 1 mol of water is about 18g, which is quite a bit more than 10 drops.