Yesterday I had a long discussion about a universal computing system. We don't learn to drive every time we change cars. I imagine that within five years computers will finally have their five or six main parts (operating system, motherboard, chips, memory, etc) standardized and compatible with everything else. People from theoretical mathematicians to grandmothers will be able to approach and use the same machine at whatever level they need. It's absurd that after forty years this hasn't happened yet. Imagine if we had twenty different television systems, etc.