5 ms·
100 years out of 10,000, is it an event? I understand the point. Just have had enough conversations with engineers about "is a micro second fast enough", "not
by FrustratedMonky 1y ago
100 years out of 10,000, is it an event?
I understand the point.
Just have had enough conversations with engineers about "is a micro second fast enough", "nothing is really happening, a whole second is plenty".
Time scales can make a lot of things look long or instant.
- cluckindan 1y agoEverything depends on context, yes. But in the geohistorical context, ”events” are commonly understood as asteroid impacts, such as the Tunguska event and the Triassic–Jurassic extinction event, so the choice of word carries a heavy implication in this context.
- FrustratedMonky 1y agoIsn't part of the issue in this discussion, and maybe the controversy. Is that the knock on effects can take decades/100s of years to develop. An asteroid is 1 day, but the fallout and seasons changing can take years. So by the time you look in geologic record, it is 10-100 of years of 'evidence'. And finding a single point event is difficult.
- adastra22 1y agoYes, it can take hundreds to thousands of years or more for the impulse of cosmic event to reach a new steady state in global climate. The KT extinction wasn’t “fast” either.
- cluckindan 1y ago”In the geologic record, the K–Pg event is marked by a thin layer of sediment called the K–Pg boundary or K–T boundary, which can be found throughout the world in marine and terrestrial rocks. The boundary clay shows unusually high levels of the metal iridium” A similar layer is suspiciously missing for the purported YD impact.