Its me again, retaliating to creationists stupid arguments. This is one that comes up momentarily in debates and discussions. "why have we stopped evolving?" I will now arm you on how to respond.
First of all, we must understand evolution. Evolution is the change within a specie, due to adaptation of its environment. Precisely why it is documented that people that live in high altitudes literally have bigger hearts.
Now there's a simple answer, we did not STOP evolving. Our life spans are way too short to observe the development of species over millions of years. Micro-evolution has been been proven, and is very much observed due to the short time it takes. Now magnifying micro-evolution over millions of years, then evolution has become real. The essence is, if our life span was millions and millions of years, we would indeed see the evolutionary process at work. As long as a specie needs to adapt to its environment, it will continue to evolve.