[Blasterlord2]

This particular digital coin called the Bitcoin is created via "mining". And it involves lots of calculations to mine which in turn requires lots of electricity (both for the computers and for the airconditioners to keep them cool).

Here's an explanation: https://www.bankrate.com/investing/what-...%20bitcoin.

It's a lot of calculations without any purpose. And the calculations are not even complex, just stepping through a a number and then hashing them with other details so as to achieve another very small number.