I see the UK is going to be issuing new 50 pound notes in June:

The Englishman Who Won WW II

This is the highest denomination note in circulation, honoring the one hero who's efforts save many millions of lives and gave the allies their victory perhaps two years earlier than otherwise. Just as context, Winston Churchill is on the fiver.

Note: The Turing Test is still one of the principle tools of Artificial Intelligence. His vision was more than 70 years ahead of his time!