Quote from: pletnevihor on April 02, 2018, 01:48:16 PM

However, quantum computers still do not exist, and most likely will not appear in the near future. By the time quantum computers become an immediate threat to Bitcoin, the protocol can be improved to use post-quantum algorithms.

Quantum Computers are still so far from its existence and giving more time for Crypto Currencies to still improve their security. I don't think that this will be a problem soon and I think your post is not on the topic of this thread.

There is a lot of ways to know the ways to earn digital currencies especially Bitcoin, you can search that on google and if you are industrious enough to read all of the posts here, you're free to do that.