The example provided was as extreme as I could get
1) assumes 1 key per FLOP (more like 1 key per 80,000 integer ops)
2) assumes moore's law will continue for 40 years (20 if we are lucky)
3) assumes 1 super computer per human on the planet (really)

Even that would be insufficient.  Yet you still stick with a belief that 10^70 is realistic.   There are only 10^50 atoms on the planet.   Even assuming terrahertz scale processor you would need to convert the entire planet into chips and then magically process billions of operations per atom.    What is going to power this?  Where are all the organic life going to go?

Feel free to have the last (delusional) word.  I won't see it because it isn't worth my time anymore.   You can have your own opinions but you can't have your own facts.  128 bit keys are beyond brute force with classical computing.  It doesn't matter if it is today, next decade, next millennium, or using a perfect computer and all the matter and energy in our solar system.