Studying the physical sciences is also more mentally taxing than coding PHP. I've gotten paid for both. You can't compare designing aircraft in CAD and Excel (what I do) that could kill someone if done improperly, with setting up email verification for your social networking site. Not even close.
You are not going to just go anywhere with just a social networking site. It's going to be much harder than that.
You are not going to just go anywhere with just a social networking site. It's going to be much harder than that.