You should read the article. They are making the same kind of argument as you, but more carefully. In particular, the key logic is: either intelligent life tak

You should read the article. They are making the same kind of argument as you, but more carefully. In particular, the key logic is: either intelligent life takes much longer to evolve than stars’ lifetimes, or about the same, or much less. We evolved at about 80% of Earth’s habitable lifespan. That would be very unlikely, if on average intelligence took less time to evolve than star lifetimes. Taking the same time on average is a knife edge case (I think this depends on the multiplicative nature of the probability distributions involved). So probably it is more. In which case, life is very rare.