Will this ever cease to be the case? Will we ever reach the end of the story? Do you think we'll ever reach a place where there's no more 'behind'?

Who knows? We may imagine ending up with a more general theory (embedding the Standard Model in some limit) that works at all energies. The point is that the current paradigm works well but has limitations. It is thus clear there is something beyond.

A truly wonderful project. I'm currently attempting to learn python, but it'll be a long way (if ever) till I can contribute anything to any worthwhile project :D

Here the python part is not needed to be understood. Only the C++ one ^^