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Which is why you get a real ATX motherboard with 4 (or 6 for upper class Intel) slots rather than a little microATX board with no expansion capability.
Every microATX motherboard I've seen in the last couple of years has four RAM slots. Both AMD and Intel.
Imagine a computer with hardware that literally reforms its self to accomplish new tasks on the fly.
Reconfigurable computing is already possible with FPGAs. You can't go and buy commodity x86-type hardware such as CPUs or GPUs just yet, but "soon" (sooner than practical nuclear fusion, later than DNF) it will happen.
Byte your tongue.