No Bill – the exact probability (as long as it is less than one, or greater than zero) is irrelevant, in the context of this conversation. The point was to distinguish between whether “increased complexity is necessarily correlated with increased fitness”, or whether it merely “can” or could" be in some circumstances. Within that context, the exact probability is, as I said, irrelevant.
Wrong Bill. The world (let alone the universe) is full of things that “cannot happen” – the Sun rising in the west would be one obvious example. It would help if you put a glimmer of thought into your responses, rather than simply reflexively sealioning. In this case, you should have put a moment’s thought into the limitations of the aphorism that you cannot “prove a negative”.
Wrong again Bill for the same reason. The Sun will always rise in the East.
These responses of yours are worthless Bill – they display a complete inability to muster a coherent argument!