Quote Originally Posted by SwirlyMass
We could be comparable to bacteria but just like them we have to have a certain environment in order to keep multiplying. So if a bacteria lives in a big glass of sugar water and eats the sugar eventually there will be none left. Thats true with humans too, but its more complicated, what if the bacteria excrete sulphuric acid but can only live in a basic environment? Eventually that critical PH is gonna pass the 7.0 mark and there gonna float belly up.

Thats more akin to the situation we seem to be in right now.
indeed... i agree completly... but i also think humans are more like a virus which will keep multiplying itself and consuming all the resources of its host (the earth) until it dies... global warming, pollution, wars, are the signs the disease (us) is almost finishing its host, this beautiful blue sphere we call home...