Wow, that's a great image,
. I read through it as well. The problem here is that these laws are still theories and can be broken. Will they? Probably not. But there is still a slight possibility.
If we can assume technology is always improving, then eventually, at an indeterminate time in the future, Bitcoin's crypt will be broken (not by brute-forcing, but by a security flaw we've yet to discover.)
However, the great thing about Bitcoin is that it can easily switch to another form of encryption, which I presume will happen before SHA256 is broken. So even if SHA256 fails, Bitcoin can chug along with the next best encryption.