“We’re going retro”
“However improbable we regard [an] event, or any of the steps which it involves, given enough time it will almost certainly happen at-least-once.”
George Wald, parahprased and quote mined. I am under the impression that GG Simpson or someone used a similar phrase in relation to trans-Atlantic dispersal of primates or certain species of ants. Or maybe it was me that said that, I can’t remember.