Aemilius wrote:Imagine life without them !!
Imagine life without golf balls! How will we live?
Actually there will be a long period of salvage where everything we have produced in our age of abundance will essentially be recycled for use.
After Rome fell a lot of things survived, though people might not have been able to reproduce them. For example even pottery. When Rome fell a lot of potters and pottery factories were erased from the economy. What used to be standard tableware for a country dweller became exquisite pieces for a nobleman's table. The aqueducts likewise were repaired for many centuries after Rome's fall, but nobody at the time could have reproduced them. The masonry skills that built them took many years to re-emerge.
A lot of high-tech machines will go the same way. Consider all the factories, specialists, labs and so on that go into just producing your PC, plus the electrical grid and all the resources and people that go into keeping it running with electricity. When the fabric starts unravelling, we'll still have old computers, but no way of building new ones from scratch.
In other words, with decreasing complexity, the old complex things will remain for a time, but much will be made simple as it was prior to industrialization. Not for cosmetic or nostalgic purposes, but out of necessity.