Comment: I have to assume that when

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I have to assume that when

I have to assume that when the quantum cat is out of the bag, crypto-currencies will very quickly become quantum-currencies.
The combined computing power of Earth if you assume:
Every person on the planet owns 10 modern computers.
There are 7 billion people on the planet.
Each of these computers can test 1 billion key combinations per second.
On average, you can crack the key after testing 50% of the possibilities.
Then the earth's population can crack one encryption key in 77,000,000,000,000,000,000,000,000 years!
Quantum computers lower this number considerably but not less than our lifetime.

But we know how bad we can be with the predictions. In the late 1980's it was believed that the human genome would be mapped sometime in the 2020's, but though greater advancements in both hardware and software it got completed in 2003.
For now, I'm cautiously optimistic that I will not see AES cracked in my lifetime.