Two people care about efficiency:
Fools and the rich.
I personally think that the average person has grown weak. Look at healthcare and how desperately the healthy and young feel like they need it. They dont. For clarity Im not an anti vaxxer.
In ancient times the average person over the age of 18 made it to 65 consistently. The life span was low because of mortality of children under 12. Those illnesses are largely mitigated with vaccines that cost what? $50-100 and only work if the bulk of the population gets them. REQUIRING the cost to stay low?
If you hit the gym and get into shape most illnesses will be mitigated at the lowest possible cost. So why not (presuming you are young and healthy) simply drop your health care coverage? If enough people did this then they would be forced to change the system and make it cheaper.
All of society feels structured like “AHHHHH WE NEED IT!” For things you largely wouldnt notice if they disappeared.
I say stop buying things. Sell what you dont want to other people at lower costs then they can find in stores. Just dont “buy in” that you need everything.
Work slower. Care about out put less. And just relax more. Thats it.