Let's say that the computational power from the genesis block to the current block becomes a trivial computation in the future by some supercomputer using a new technology exclusive to it. Perhaps this is a government funded secret project using a niche quantum computing algorithm or some other esoteric technology at the time that the rest of the world is oblivious to.

At this point, couldn't this supercomputer simply create a longer "fake" chain from the genesis block than the current Bitcoin blockchain, and broadcast this to all nodes as the valid chain to accept since it's the longest, thus invaliding all transaction since the genesis block?