A lot of people on my 'silly victorians lit their homes with undetectable gas' post have been wondering what wild and wacky things we use today without realising it and people a century from now will mock us for relentlessly.
Its the plastics. Just completely absurd quantities of plastics. Particles in every part of our bodies and environment. Plastics being marketed as environmentally friendly. Breaking down every time we wear or wash our clothes or walk in our shoes or drive our cars and if our belongings catch fire in our desperate efforts to save the others, the fumes from our furnishings and carpets and clothes give us every type of cancer at once.
To the terfs in the notes: No, the great technological folly of the era is not fucking trans people. History will remember you like phrenologists and asbestos.