It is absolutely nuts that we don't have a greater diversity of computing platforms (as we did in 80s 90s) considering we have such widely adopted standards tod

It is absolutely nuts that we don't have a greater diversity of computing platforms (as we did in 80s 90s) considering we have such widely adopted standards today that overcome the "compatibility" problems. There's fertile ground for exploring more Smalltalk/Oberon/Hypercard/Lisp-machine like computing systems, with the confidence that they will be able to interact in a meaningful way with the outside world. Unfortunately, Computer Science continues to train people in Unix.