The “most species that have ever lived” that you mentioned were not capable of preventing new species from arising—because that happens naturally all the time. If you introduce this hypothetical, it seems as though you have to abandon your original argument.
It is thinking too much about events that you have little control over that can be bad.
Also, in biology, more thinking than normal is not good, on average—thoughts are costly and there is an economic tradeoff.
The “most species that have ever lived” that you mentioned were not capable of preventing new species from arising—because that happens naturally all the time. If you introduce this hypothetical, it seems as though you have to abandon your original argument.
It is thinking too much about events that you have little control over that can be bad.
Also, in biology, more thinking than normal is not good, on average—thoughts are costly and there is an economic tradeoff.