As far as design is concerned

I think that things that are fundamental to the human experience should generally follow the design language of their predecessors,

That is, what worked in the past - you should keep its function similar and immediately intuitive.

I should never have to question how to flush a toilet
Or how to get water from a faucet

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These things are ingrained in us and thus should be second nature. To tweak them is annoying and is design for design sake

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CONTEXT:
I was trying to flush an advanced toilet and I couldn’t figure out how to do it