Let's see. 1 generation => Lots of compassion. 6 billion years => no compassion. So somewhere in between. How about you?
...I am not sure where you are getting such massive numbers from. Modified gamblers fallacy?
OK I'll bite. What's your number?
You appear to be missing my point. I am not criticizing your lack of apathy for people in the absurdly distant future. Rather I am puzzled that you are even thinking along those lines.
acomar was discussing extinction events and you seem relate that to billions of years in the future. I find that rather incredibly odd. Is it optimism?