How many people does it take to infect another person? My guess is one. Do you think we can quarantine 7 billion people for 3 weeks? And there wont be a virus somewhere that makes it past 3 weeks? It only took one person in wuhan to get sick and it spread throughout the world.

Please explain how you believe it is realistic. They welded people in their apartments in china and it still spread. People are locked down hugely in Australia and new Zealand and it still spreads. If only EVERYONE IN THE ENTIRE WORLD. EVERY. FREAKING. PERSON. IN. THE. ENTIRE. WORLD. ALL. SEVEN. BILLION. PEOPLE. would do exactly as you say we could beat this thing.

Current actions IMO are stretching this out and making it worse allowing things to drag out as opposed to letting it run its course naturally. LL would go a long way to reducing the impact, but we already know that.