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pdog

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pdog
·5 年前·議論
> That’s because experts do not yet know how long you are protected from getting sick again after recovering from COVID-19.

Since when has not knowing something been justification for intervention?

Given that people have been getting sick from COVID-19 for at least as long as vaccines have been available for testing, shouldn't experts have a reasonable understanding of whether previously infected people are as protected as recently vaccinated people, or how often (or rare) it is that people can be infected with the virus again?
pdog
·10 年前·議論
Check out Points of View: http://vpri.org/pov/
pdog
·10 年前·議論
Alan,

Computers have been a part of education in the United States for several decades, but you've argued that technology isn't used to its full potential.

1. Why has technology in schools failed to make an impact?

2. How would you design a curriculum for your children that uses technology effectively today?