haha

are those all valid characters in bech32?

i think you can double for each bit, so each character is 5 bits, and let's say 10 minutes is average for 25 bits, and you want... 12

so that's an extra 35 bits, so 600 seconds for 5

last bit was 300, then 150, then 75, then ... idk

anyway, so 26 bits is probably 20 min, 27 is probably 40 min, 28 is 80 min

238609294 days based on that very rough estimate

0.000017881s for the first bit, then double that until you get to your required 60 bits