Why we don’t have 128 bit OS or CPUs?
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Realistically, we shouldn’t even have 64bit.
Some people and probably google will tell you otherwise, stuff such as “32 bits were limited to 2^30 * 4 = 4 gb ram”.
Absolutely not, the original x86 was 16bit and could access a wider range through indexing.
The only real reason we moved to 64bit was marketing shenanigans from AMD.
In reality it simply increased the cost and power consumption of processors.
64bit would only be a good option if a considerable amount of programs used 64bit variables and (consequently) 64bit arithmetic, since that would mean that they can now add/subtract/muliplty/etc 64bit numbers in one circle instead of two.
In reality, the overwhelming majority of programs never use 64 byte variables, because they are unnecessary.
Which is why you should hope and expect no transition to 128bits is made for the generic line of computers.
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