Arrrgggg, again.
I just started watching a TV series called 'Revolution' from 2012.
OK, I give them the 'magic effect' of no electricity anywhere, even from batteries. 100% fair.
But, the claim of they cant pump water or plow their fields.
They show candles still work.
Any old hand-cranked diesel tractor engines (many farmers still have them even if they are not in use today) with no electronics whatsoever should burn diesel as well and run perfectly fine.
And, why cant they still not use old fashioned wind mills for pumping water, let alone old fashioned diesel engines to do the same job.
Has all scientific knowledge and it's use become taboo?
I bet some old WW2 tanks with diesel engines and a hand cranked inertia-starter should also still work fine.