Imagine our ancestors sitting around a fire pit just... staring at sticks. No tea, no pasta, no sterilization, no steam engines. Just raw food and disappointment. Water's boiling point at 100°C (at sea level, anyway) literally changed everything for humanity. It gave us the ability to cook food safely, kill pathogens, extract nutrients better, and eventually harness steam power that kicked off the Industrial Revolution. These early humans would've been stuck in the Stone Age forever, probably just rubbing sticks together for warmth and wondering why their tummy hurts after eating raw mammoth. Thank goodness for hydrogen bonds being just weak enough to break at a reasonable temperature!