Are there 2^160 possible addresses or 4*2^160 (4 address types) possible addresses?

Let's say Bob tells you to send him btc and he gives you a p2pkh address whose underlying 160-bit number is, say, 12345. You can't just convert that to the taproot representation of 12345 and send btc to that taproot address; Bob wouldn't receive that right?

So, effectively, for any given 160-bit number, there are 4 different addresses you can generate from it, and sending btc to one address type would indeed send only to that address type, and the other 3 would not receive it?



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