You can not say it hasn't come close yet: that is not measurable. How many brinks have there been in the last 56 years, is surely undefinable because we don't know the effects of quantum butterflies in the counterfactual timeline.

We might be able to say it hasn't destroyed itself yet?

And what is meant by the "present system" is unclear. Plus the present system cannot be the past system so your choice of words is kinda weird!

Sorry, pedantic nitpicking can be a hobby. I don't like this comment.