It is not possible with 100,000 graphics cards. I encourage you to do the mathematical calculation yourself:
- Test how many hashes per second are possible on your system
- Calculate how many possible words there are in 4^62
- Calculate how many seconds it would take for your system to complete all the words
For example, if your hash was an MD5 hash, and your benchmark was similar to:
https://gist.github.com/epixoip/23068f4b...e7751522f2
... then this is how many
years it would take to exhaust on your system:
https://www.wolframalpha.com/input/?i=4%...*24*365%29
7.5*10^32 years, or 7500000000000000000000000000000000 years.
If you instead had a
million RTX 2080, it will only remove six decimal places, and be:
7.5*10^26 years, or 7500000000000000000000000000 years.