Lol you're living up to your username I guess.

I mean that's a fairly profound thing to say, but in reality single-trunk trees with 4000 years of rings are very, very rare. There's a list of them on Wikipedia, there are like a handful over 4000 years.

So yeah their life time can be up to that level, but it's so rare that your profound analogy kinda becomes humorous.

From what I understand, a generation is the average length of time a species needs to successfully propagate. If we were to use the oldest known member of the species, a human generation would increase by four times.