In reality, however, scientific progress seems to be accelerating. Of course, it’s hard to measure, but I’ve seen claims that the portion of the 21st century that has passed has already brought more scientific discoveries than all of the 20th century, let alone the ones before, and these claims don’t seem implausible to me.
There’s a recent paper on the topic “Are Ideas Getting Harder to Find?” According to data analyzed there rate of scientific discoveries in existing fields (e.g crop yields increase, Moore’s law, etc.) remains close to constant while number of researchers constantly increases.
Comma got picked as part of the link, here’s a fixed one.
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Harvard published a study on link between PM2.5 pollution and mortality.
We found that an increase of only 1 μg/m3 in PM2.5 is associated with a 15% increase in the COVID-19 death rate, 95% confidence interval (CI) (5%, 25%)
Places most hit so far are on the more polluted side so one can expect final CFR/IFR be lower than estimated from current data.