A fined tuned argument.....Heywood style.

[Alex K]

Not in all, in most, i.e. "They are very probable to be near...."

What is meant by "catastrophic". Is the catastrophe the non existence of a daughter universe or does it mean it exists but not in a state where emergent complexity can arise?

I think they mean the at least latter - no atoms etc, but also possibly more severe, e.g. recollapse before there is sufficient time to form solar systems etc.