Long term, it might be possible to auto-generate equivalent-difficulty hash functions. A new hash function for every block. That would fix things back down to FPGA technology level, and contribute better to generic hardware development.
I climbed down that theoretical physics rabbit hole and I am convinced there is nothing there. The entropy is limited by the number of opcodes in the hardware or software instruction set. It is not possible to spontaneously generate
deterministic order of out disorder; and PoW requires a deterministic winner of each block. Order that arises from chaos was already there but under sampled (i.e. unobserved).
Will you comment on whether you are the author of the Sumcoin whitepaper?