Studies that covered Denmark? I doubt that. Other countries? Maybe, but I don't care.You might have to translate this to read it: https://dce.au.dk/aktuelt/nyheder/nyhed/artikel/reduceret-forurening-fra-vejtrafik-under-coronakrisen-giver-faerre-for-tidlige-doedsfald-og-sygedage-i/ but the reduced traffic during corona had a positive effect on air pollution and related deaths and sicknesses.
I remember playing the text-based version on a Vax terminal in the early 80s. I wasn't very good at it.
How? Does it make your mom transparent?