Hi Lex, really enjoy your stuff! On this question, you like almost every analyst, omit a key factor. Specifically, since it is unknown what constitutes all elements of the beginning of life, we can’t construct a meaningful equation. To use a loaded example, there may be a classical god from whom life requires consent, that may be unlikely, but if true renders the DE meaningless. Ano. example: suppose, according to the laws of nature (which we do not yet and may never discover and understand) perhaps one essential element of life is that it is  singular in its ultimate nature, once it happens, that’s it. [BTW my son is a BJJ instructor.]