Silurian hypothesis

[pier4r]

I don't really enjoy such speculations as it is hard to test claims. Although in this case is a bit more serious because the study come from nasa.

If it would be true it would be incredibly sad. Tons of life experiences, knowledge (and calculators!) lost for good (we already lose a ton of those things every year). Also imagine another planet where such an early progressed civilization exist. It would have a huge head start compared to us.

As last speculations: Imagine another civilization that never discontinued their 41c . I guess many here would be ready to accept them as our overlords.

Edit: the paper can raise another question. Did have so far produce something that can last millions of years as archeological evidence? I mean even bones, artifacts or the like. I'm not aware of anything that could last so long with the Earth geologically active.