ROD - A very good BBC tv (YES BBC) series from the 1970s, illustrates what a post technology life, might be like:
Survivors - created by Terry Nation.

Of course, many of us older ones would soon perish, as we are mostly dependant on Blood pressure tablets & similar - the younger members of society would die of panic, with no signals on their mobile phones that they are so dependant on.

Survivors problem was a fast mutant strain of the bubonic plague - much worse than Covid

Meanwhile - keep plenty of tins of soup at home & the means to heat it - with no mains power or Gas 😡
What a cheery chap, Andy Burnham has proven to be.....