So what was the cost of sequential search for #66?, was it more than 6.6 BTC? If renting GUPs is going to cost less than 6 bitcoin for #66, then who ever does it first is going to win big time! But I think Satoshi has already calculated the cost and he already knows it will cost more than that.
Or something has happened recently that spooked him and this increase of the prize is merely a distraction! Lol.
I'm only good at making up conspiracy theories. Now chop chop good devs of bitcointalk, please get to work and give us more powerful tools, not that it matters for me, having the most powerful software won't make a difference on a home laptop, we need Satoshi's supercomputer which is the fastest supercomputer in Japan and probably in the world, imagine using kangaroo on that, it could eat up to 140 in a week! 😉
hmmm 140 bits. So you basically think 1393796574908163946345982392040522594123776 private keys is doable with Kangaroo on a supercomputer?
The most optimistic scenario is 44 years with the fastest device. We need either group-search or (even better) quantum search. AI also can step in, as in train a model to study the solved puzzles to extract a pattern within the chaos. This pattern could then be used to narrow down our task by generating highest probability ranges to search within.