my understanding re the great filters Ive only read in some stuff by Webb. ACting against abiogenesis in the galaxy may be thought of as any fundamental reaction control . We do know that, on earth, life seemed to have had, at last 3 "kick starts" that were separated by time and chemistry. ALL were remarkably similar in that they seemed to "bio accumulate" C12 and were rotatory compounds that were levo rotatory. The consistency is amazing on this planet. I think e will use this finding as an initial model from which to compare anything that e may see on other planets (as we get going in any searches for evidence of actual life).
Ill look at that vid clip. Robt Hazens hypothesis is that the Hadean Earth was composed of only about 35 elements. Complex chemistry grew via "incoming" support via bolides during the period of "Heavy Bombardment" So, "extremophiles" may be a rather recent phenomenon in ascending life on the planet, and are the result of environmental adaptation to a changing environment as a result of geologic processes .
Like the Gypsum Caves of Mexico wherein only a few forms of life now live, we see evidence of greater numbers and diversity in earlier faunal fossil assemblages in the very same area.
Those caves have hot water, acidic conditions (the gypsum is the result of buffering of sulfuric acid a it flowed through ancient limestone.
Does that vid clip discuss the previou edaphic conditions that existed before it became an area barren of all life? That I would find really interesting.