Will all people on earth get covid during the next 10 years who aren't vaccinated?

That's likely but not absolute because presently there are still 8 billion people on the planet (even though millions and millions have already died from Covid already during the first 1 1/2 years of it through various variants. The worst variant we have ever seen so far (as far as being contagious) is the Delta which is as contagious as a cold or flu or chicken pox which is extremely infectious!

But, if you follow the laws of probability you can sort of predict where all this is going and I can likely easily say that people not vaccinated between now and 2031 are very likely to get covid or die from it or get sick and get long covid or get senile dementia from covid which is very common with the Delta Variant.

So, I think it's safe to say that most people who aren't vaccinated on earth in the next 10 years time will either die from Covid, or get  Long Covid or get Senile Dementia from Covid all over the earth. And some who get it will have no symptoms at all like some of the people we know.