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What technologies have developed as far as they can?

I'm thinking beer cans, pencils, LEDs, paper clips, chop sticks, and tissue paper (kleenex and TP). Not much will change with them. What else?
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spjennifer · 56-60, T
I'd rather ask why certain thing have been made into technology that don't really need it, does your refrigerator really need a screen? Does a toaster really need microchips?