Interesting. Didn't Unicode restrict UTF-8 to allow encoding only 21 bits? Does it mean that it can now do 6 byte UTF-8 encodings? What kind of restrictions did it have before?
>Addresses are encoded in Base32 which means there are 32 characters available. So there are 32^16=1.208925819614629174706176×10^24 addresses available.
I sorta understand what you mean, technically it's 32 characters per position (5 bits), and 16 positions.
In v2 .onion addresses, that is.
v3 ones [1] are 56 positions, but not all the bits are used for addressing, so the same formula wouldn't quite work to calculate real theoretical capacity.
IIRC someone already made site which generates unlimited links to v3 addresses (without having them lead to anywhere, of course).
Why "was"? Nowadays it's not?