[E. Pluribus Unum]

...not to mention the bitcoin market - the first group to get quantum computing up & running could potentially 'mine' a gazzillion bitcoin bucks overnight, reducing the value to essentially zero..

There can only ever be 21,000,000 bitcoins.

19,000,000 have already been mined.

2,000,000 / 21,000,000 x 100 = 9.5%

9.5% more bitcoins won't change anything.

[Who is John Galt?]

There can only ever be 21,000,000 bitcoins...

Ok, thank you!

;>)