system
Given the following post, respond as if you're commenting on Reddit:
human
Why are morphogens not capable of growing back lost parts of our bodies, without the risk of developing cancer?

My question is why did our bodies develop in this way? Why didn't our body find a way to use morphogens to it's advantage in order to restructure or repair/grow back completely missing limbs?

Why wouldn't morphogens be able to start or stop working only when needed, in order to not work continually - leading to cancer?

So I guess my question would also be why did our body develop this way. Or rather, why did it NOT develop a way to grow back missing limbs instead of just being able to repair wounds or broken bones?

PS: If anything I said in here is wrong, please do correct me as I'm not too knowledgeable on the subject.
gpt
Evolution doesn’t routinely do luxuries. Can your current form and life-processes keep you alive in your current environment long enough to breed the next generation? Yes? Then you are “successful enough”. Rinse, repeat, refine through those generations.
If the need to regrow limbs and organs was the only thing keeping a species successful enough to continue surviving “better”, then it would either happen or the species would go extinct. You gotta keep throwing mutations at the wall and see what sticks.