@aborgman - I get your points but don't think it's quite as cut and dried as you seem to frame it. I don't think that you can effectively say that mind-altering substances can do anything other than alter the mind. They cannot create anything nor can they make a person create anything.
They cannot create anything, but they certainly can make a person create something.
Altering the mind can cause people to do things they wouldn't otherwise do - including create things.
Just think about the number of things that some tired/lazy ass would never have done were it not for some meth!
No, it's quite easy to argue that point. They were artists before and after the acid tests. The subject matter they chose to focus on was influenced by the acid tests. The drugs didn't make them artists but they definitely inspired and influenced their art.
...but did it make them "great"?
Lots and lots of people are "artists". Some of them are great.
Some of them are decidedly not great for large parts of their career - and then because of some outside impetus (wife, drug, change of scenery, whatever) do great work.
You don't gain the talent to be great from drugs, or booze, or women...
...but you might gain an inspiration you would never have had without it... and that inspiration might lead to the only work you do that is "great".
No one can say they wouldn't have created long-form, improvisational jams if LSD never existed.
Right... and I can say that while they were artists as a bluegrass band, they weren't great until long-form, improvisational jams.
There are plenty of examples of artists who created art about stuff that didn't exist and was the sole invention of the artist's imagination just as there are examples of art created about very real things. Saying drugs or booze can make an artist make art is like saying a tree can make an artist make art.
A tree CAN make an artist make art.
SO can a rainbow, or a pretty song, or a beautiful sunset, or a kiss from the woman he loves...
Saying an artists cannot create art about drugs or booze or a drug/booze experience is like saying an artist cannot create art about a tree without seeing or experiencing a tree.
I would argue that an artists cannot create HONEST art about a tree without seeing or experiencing a tree.
Artists can create art with or without any number of outside influences.
The art maybe better, or worse due to those influences.
...but a certain artists may be inspired to greatness by anything - including drugs - and without that inspiration their is no guarantee (no matter how much an artist they may be) that something else WILL inspire them to equivalent levels of excellence.