Historically minimalism has been heralded by poor Japanese, so yes, in the general case it is ascetic. But nowadays it also includes a bit of minimum comfortability with some possible unnecessary improvements, IMHO.
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Pure bliss:

Forgot to power off/on again to reset your hacking attempts!
Oooo look at those scan lines 😇
Ah it's perfectly vertically centralized on the golden ratio! That is definitely not minimal and already sophisticated!
In my humble opinion 'minimalistic' is not equal to 'ascetic'.
Ascetic is the general case.
Historically minimalism has been heralded by poor Japanese, so yes, in the general case it is ascetic. But nowadays it also includes a bit of minimum comfortability with some possible unnecessary improvements, IMHO.