5 ms·
Doesn't an /almost/ perfect cancellation actually make the question "Why is it so close?" not "Why is there an asymmetry at all?". If I tossed a million coins a
by _0ffh 7y ago
Doesn't an /almost/ perfect cancellation actually make the question "Why is it so close?" not "Why is there an asymmetry at all?". If I tossed a million coins and ended up 499,999 heads and 500,001 tails I wouldn't be surprised by the difference, but by it's small size.
- knzhou 7y agoIndeed, that's exactly how we used to talk about it: if you can just postulate some initial asymmetry, the question to answer is why it's small. We don't think this way anymore because we're fairly sure inflation occurred, and its exponential expansion rapidly dilutes away any initial asymmetry. So we need a way to generate asymmetry after inflation ends.