Toolmaker Koan
by John C McLoughlin · first published 1987
3mentions
2recommended by
3HN commenters
2017–2020first – last mentioned
67% recommend33% neutral
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An underrated sci-fi book based on this premise is Toolmaker Koan by John C. McLoughlin.
on “Was there a civilization on Earth before humans?” ↗Try 'Toolmaker Koan' by John McLoughlin Also the Silurians from Doctor Who (and the 'Sea Devils', also from Doctor Who because of an IP licensing dispute)
on “If we weren’t the first industrial civilization on Earth, would we ever know?” ↗Yes, that's the [Toolmaker Koan][0]. [0]: https://www.amazon.com/Toolmaker-Koan-John-McLoughlin/dp/067...
on “Thousands of underground gas bubbles poised to 'explode' in Arctic” ↗