It would be smarter to not make the future super computers to be backwardly compatible. It would be better to write the applications fresh than to attempt to upgrade an existing application built for a computer with a few cores.

This super computer looks like a solution for a problem we don't have, yet. It sounds like it would be best to model complicated systems like weather to improve weather forecasting. Using such a super computer to figure your check book balance or play video games could be fun but a waste of computational power, even most business needs would use less power than what this super computer is expected to handle.