Value of medical marijuana in the Australian market?

Hey just wondering if anyone has done the numbers on this.

From reading the government rules it sounds like any number of companies can pop up and get a licence to grow or import medical marijuana... and the only limit is domestic demand. Does this mean that people quoting a 2.7 billion global market are way off because we can only ever service our domestic demand? I would image our domestic demand is minuscule in the scheme of things.

I get that this is a speculative marketplace but I cant help but think people are dreaming...

There is no restriction on the number of licences that can be granted; however, under international conventions, the overall quantities produced must not exceed domestic requirements. Therefore, the number of cultivators that will be licensed to grow and supply cannabis to licensed manufacturers will depend on the demand from prescribers and the patient groups they treat.
https://www.odc.gov.au/cultivators