I think the logic here is supposed to be something like:

more knowledge = more complex brain

as you need to “store” the knowledge somewhere.

I don’t say thats how it works but i can somehow see where OP is coming from.

You could try to find someone to taylor something like this for you. It will be pricey but you’ll have the most control about fit and material.

Im using that one since 2021 for at least one heavy shopping trip per week and am pleased with it so far. Still is in very good condition and will hopefully be for many years to come.

If the meister ever breaks i will treat myself to one of those. They are always in the top in rankings and can tolerate loads of weight.

Spare parts are available for both so repairability is alsp no problem

Not sure if these are available were ever you live. :)

Still has use cases tough. I had eough fresh bread go bad to freeze most of it now. The highest setting allows me to thaw and toast the bread in one go. Which is nice.