Over the centuries the Indians developed sign language for communicating phenomena of interest. Programmers from different tribes (FORTRAN, LISP, ALGOL, SNOBOL, etc.) could use one that doesn't require them to carry a blackboard on their ponies.
You can't change what's already happened, so focus on the present moment.
In times of change, the ability to adapt quickly becomes your greatest competitive advantage.《The Energy Imperative》