Failure is an enigma. You worry about it and it teaches you something.
The way the world is going it's technology driven. And it isn't just driven...
The Soviet Union did not achieve victory over the West so was my information...
In science 'fact' can only mean 'confirmed to such a degree that it would be perverse to withhold provisional assent.' I suppose that apples might start to rise tomorrow but the possibility does not merit equal time in physics classrooms.