I don't get why you're being downvoted. Lisp had a 40 year head start, it had commercial backing in multiple iterations, it has a grassroots community that pesters the other to this day.
I can't say anything about Smalltalk because I don't know enough about its history, but at this point in time it's pretty sure that unless some sort of major event happens, Lisp won't ever go mainstream.
I can't say anything about Smalltalk because I don't know enough about its history, but at this point in time it's pretty sure that unless some sort of major event happens, Lisp won't ever go mainstream.