4 ms·

So could an asteroid impact, or Yellowstone volcano erruption, or thermonuclear war. The question is how likely is it.

• rolph 7y ago
  it [pathogen] has happened already a number of times, the chance is not a marginal one, vs one little impact in russia that was witnessed,
  • ceejayoz 7y ago
    Asteroid impacts and supervolcanoes have "happened already a number of times". Certainly more than just "one little impact in Russia".
    • rolph 7y ago
      yes certainly but we havnt directly observed very many of them, and for most of them we were not even extant. the extension is that near earth objects are quite common but we dont notice a lot of them. just like disease epidemic or pandemic, a number of them have happened already we just are not good as a group at noticing those things probably due to preoccupation with little rectangles of paper with famous historical figures printed on them.