OK, thanks for that.And knowing I am preaching to the converted,...

OK, thanks for that.
And knowing I am preaching to the converted, I found this Google search " the new science of medicinal cannabis " to produce a wealth of information on the subject.

One in particular ( https://vikingmasek.com/packaging-machine-resources/packaging-machine-blog/6-ways-legal-cannabis-will-transform-cpg-industry ) suggests "that legal cannabis sales in the United States will reach $41 billion by 2025"
That would be USD41billion. I reckon any player whatsoever can expect to make money in a market like this. If it turns out so.