Comments in Editing
From Jeremy M.: "It has come to my attention that you have included a link on your campaign website to my 'Collapse of a Texas Quote Mine' ... Unfortunately, it appears that the link on your website is broken."
Thanks Jeremy for your outstanding work analyzing of the history of these quotes. The link to your site is now fixed.
From Pete D.: " ... mixes the Cambrian with the preceding Ediacaran Period. ... The Ediacaran Period (ca. 635-542 Ma) represents the time from the end of global Marinoan glaciation to the first appearance worldwide of somewhat complicated trace fossils ... The Cambrian is the first geological period of the Phanerozoic eon, lasting from 542 to 488 million years ago ... Broadly speaking, the Cambrian is supposed to be the time of the beginnings of multicellular animal life, and 600 - 500 Ma is not unreasonable for general public discussion."
Thanks Pete very much for your expertise. I've added a reference to the Ediacaran for technical accuracy.
From John H.: " ... says 'a hundred millennia' when he means 'a few hundred million years.' ... "
Yes, indeed, it was an error of language. Thanks John, for noticing, and for the correction.