Small point here to the disenters: If you get cancer, it will cost $$$ to treat you. Do you want to spend those $$$ on a maybe treatment that might let you live another 5 years, or would you rather spend those $$$ on a cure..no more cancer, no chemo, no radiation, no hair falling out, no puking?
I just found out my Mom has cancer for the third time, this time probably will be terminal...it took little thought on my part to dump SETI and start doing UD. As a Human, it is only natural to think of preservation of the Human race. Once the cure for cancer is found, I will start caring about Aliens.