Yes, it's an "old" mythic treatment that's been making the rounds on the 'net for at least twenty years. It turns out that Apricot kernels, apart from containing that Laetrile substance, also contains significant amounts of arsenic which may or may not have an effect on cancerous tumors, but also has sn effect on the body's healthy tissues. So you may get a positive effect on the rampant cell division that happens in cancerous neoplasms, but also at a cost to your general health, ie. Arsenic poisoning. 

 Well, here’s your opportunity to make a billion dollars. Get a method patent on treating cancer with this free substance. 

 I'll leave you to it, thanks. 

 My point is that just because the compound isn’t patentable, that doesn’t preclude making billions of dollars off of it. 

In short, there’s a multibillion dollar payoff for anyone correctly betting that it works. 

 Rest assured that giant pharmaceutical corporations will. 😏 

 Maybe…there are millions of compounds to test. 

 The problem is either patent, which boils down to who has a better and longer standing legal team, or scale. Either way the corporate interests have the small genius innovation contingent beat. 

 True. But this doesn’t preclude anyone from trying…just from making money off of it.