Saying that “intelligent life is so extremely unlikely, that we should expect far less than 1 such event per universe” is equivalent to saying that there exists an extremely strong filter behind us, since we’re using “great filter” as jargon for “reason why advancement past a stage is improbable”. And, for what it’s worth, I don’t think a filter anywhere near that strength is at all likely.
Saying that “intelligent life is so extremely unlikely, that we should expect far less than 1 such event per universe” is equivalent to saying that there exists an extremely strong filter behind us, since we’re using “great filter” as jargon for “reason why advancement past a stage is improbable”. And, for what it’s worth, I don’t think a filter anywhere near that strength is at all likely.