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Re: The clay shards and pottery in TP What & Why?
All as good a theory as the next.
How about adding soil mineralisation and homes for "wee beasties"?
I stopped half way though 1492.
The biggest human kill-off in history. The plague, at best, did 30% of the population. But 90%! No wonder. Cortez et., al., had it easy.
I am glad NASA takes such care with off-planet bugs.
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