The first reason is that with any particular virus, it will typically sweep through the world multiple times. The 1918 flu pandemic did that, as Vince notes above.John wrote:Wave after wave? Why?Higgenbotham wrote:I'm expecting wave after wave of pandemics to sweep the world. How long it takes for the second wave of pandemic to sweep through will make some difference. If it's 6 months from now and the second wave is worse, that won't be good.vincecate wrote:
Lets imagine that 6 months from now the Covid-19 has faded into the background of other colds and flues. How long will it take before people are willing to go on airplanes or cruise ships again? To conferences? Travel for fun? Disney land?
I think airplanes and cruise ships need to figure out air filtration and sterilization such that one passenger is not a danger to others before they will ever get back to the old levels. This probably takes years.
Tesla's "bio defense mode" will probably help sales of their cars.
Maybe not permanently shut down but there will definitely be a lasting effect.
The second reason is that there are multiple lethal viruses other than COVID-19 that exist in multiple laboratories right now that can be released either by accident or on purpose.
The third reason is that as the first wave of pandemic wears down the population, the population becomes more susceptible. This susceptibility can result in another pandemic, even from an existing virus that the population was previously immune to.
The fourth reason is that the technology now exists for lone wolves, terrorist groups, and governments to create more lethal viruses that don't presently exist for the purpose of creating havoc or for warfare.
To me, the question is not if, but when, the second and more lethal wave sweeps through.