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determinism.md
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@ -6,7 +6,7 @@ Deterministic system (such as a [computer](computer.md) [program](program.md) or
Along the same lines determinism is also a **[philosophical](philosophy.md) theory** and aspect of [physics](physics.md) theories -- here it signifies that our [Universe](universe.md) is deterministic, i.e. that everything is already predetermined by the state of the universe and the laws of physics, i.e. that we don't have "[free will](free_will.md)" (whatever it means) because our brains are just machines following laws of physics like any other matter etc. Many normies believe [quantum physics](quantum.md) disproves determinism which is however not the case, there may e.g. exist hidden variables that still make quantum physics deterministic -- some believe the Bell test disproved hidden variables but again this is NOT the case as it relies on statistical independence of the experimenters, determinism is already possible if we consider the choices of experimenters are also predetermined (this is called [superdeterminism](superdeterminism.md)). [Einstein](einstein.md) and many others still believed determinism was the way the Universe works even after quantum physics emerged. { This also seems correct to me. Sabine Hossenfelder is another popular physicist promoting determinism. ~drummyfish } Anyway, this is already beyond the scope of technological determinism.
[Computers](computer.md) are mostly deterministic by nature and design, they operate by strict rules and engineers normally try to eliminate any random behavior as that is mostly undesirable (with certain exceptions mentioned below) -- randomness leads to hard to detect and hard to fix [bugs](bug.md), unpredictability etc. Determinism has furthermore many advantages, for example if we want to record a behavior of a deterministic system, it is enough if we record only the inputs to the system without the need to record its state which saves a great amount of space -- if we later want to replay the system's behavior we simply rerun the system with the recorded inputs and its behavior will be the same as before (this is exploited e.g. in recording gameplay demos in video [games](game.md) such as [Doom](doom.md)).
[Computers](computer.md) are mostly deterministic by nature and design, they operate by strict rules and engineers normally try to eliminate any random behavior as that is mostly undesirable (with certain exceptions mentioned below) -- randomness leads to hard to detect and hard to fix [bugs](bug.md), unpredictability etc. Determinism has furthermore many advantages, for example if we want to record a behavior of a deterministic system, it is enough if we record only the inputs to the system without the need to record its state which saves a great amount of space -- if we later want to replay the system's behavior we simply rerun the system with the recorded inputs and its behavior will be the same as before (this is exploited e.g. in recording gameplay demos in video [games](game.md) such as [Doom](doom.md); determinism is also oftentimes needed for good implementation of multiplayer).
Determinism can however also pose a problem, notable e.g. in [cryptography](cryptography.md) where we DO want true randomness e.g. when generating [seeds](seed.md). Determinism in this case implies an "attacker" knowing the conditions under which we generated the seed can exactly replicate the process and arrive at the seed value that's supposed to be random and secret. For this reason some [CPUs](cpu.md) come with special hardware for generating truly random numbers.