This is probably not a great reading of what you wrote, so I'm happy to be corrected, but this is what I get from your comment: humanity has discovered or inven

This is probably not a great reading of what you wrote, so I'm happy to be corrected, but this is what I get from your comment: humanity has discovered or invented beneficial uses for some compounds (like for example some of the vaccines that have been developed throughout history), so therefore we should presume the safety of every other novel use of a compound that comes along. Thats not what you mean, right?