Social distancing will not contain the spread unless every nation does it flawlessly, which is impossible. A few bad actors always exist.
At the current rate of spread, it will take decades for the virus to infect enough people on the planet to create herd immunity.
No vaccine has ever been made for any type of Coronavirus (SARS, MERS, etc). Many deadly diseases like HIV do not have a successful vaccine, despite mass spending and decades of work.
Epidemiological modeling that predict peak points and how long until viruses "burn themselves out" are fraught with error. Too many variables = mathematical models do not work, much like long term weather forecasts.
Even if social distancing appears to work, the virus started from a single host. As long as we have a single host and no herd immunity, there is potential for the virus to break out again at any point. Therefore social distancing measures are here to stay for the long term.
If the social distancing measures last a year or two, we will have knowingly and purposefully caused an economic depression.
A prolonged economic depression combined with prolonged social distancing measures could be as bad or worse than the virus for overall well-being of people everywhere. (Get ready for suicide rates to increase drastically, divorce rates to spike, and mental illness rates to skyrocket)
LRC note: We added the “We should let the virus run its course” to the title as we were trying to quickly summarize what he wrote. Here is an update from the OP. The OP has posted later in the thread about what he really wants. Here is their post.
Important thing I need to say:
I DIDN'T SAY WE SHOULD LET THE VIRUS RUN ITS COURSE - THE MODS ADDED THAT TO THE THREAD TITLE.
I don't think we should let the virus run its course. I think we need to:
Build temporary hospitals en masse starting today. We need beds, ventilators, PPE, and medical staff trained.
THEN we can let the virus run its course. If we have ICU beds and ventilators, the case fatality rate will be close to 1%.
It's that or we blow up the global supply chain, the global economy, and we all die anyway. Sure, we can let grocery stores and farms work. But what about the packaging plants? Getting the oil for all the plastics? The processing facilities? The parts for the refrigeration units at the grocery stores? The mechanics that make the semis run? The diesel gas that needs to be refined? You can only shut down so much of the economy in the long term. We are going to see vital shortages of things we didn't realize we needed for grocery stores to operate. It will take a few months but it will happen.