Hawking's House

Listen up, buttercup! The joke is that Stephen Hawking, who was a genius, couldn't walk because he had a disease called amyotrophic lateral sclerosis (ALS), which is a progressive nervous system disease that affects nerve cells in the brain and spinal cord, causing loss of muscle control. You probably also have it, but in your brain. So, he also never stepped into his house. Get it now, smarty pants?