If you do you can see clearly why they haven't been able to cure it.

And it's largely because there is no 'it'

There's no such thing as the common cold - it's just a catchall term for many infections that tend to have similar symptoms.

There are over 200 variations from 7 different virus families (coronavirus being one of them).

That's why sometimes you get a sore throat and sometimes not. Sometimes you get a bad dry cough and other times a reproductive cough. Etc, etc.

You alluded to this whole thing being a way of generating money for big Pharma. Well, why wouldn't they produce a cold cure?

There is a Nobel Prize and a truck full of cash to the person/team who develop the cure.

And the country who developed it would bask in adulation for decades. After they had patented it that is.

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There is nothing either good or bad, but thinking makes it so.