This, and also I am specifically interested in if you can do modern web development in it, and if playing with smalltalk will result in similar epiphanies that learning multiple functional languages did.
It's hard to embed in your regular flow because of the image based nature. If regular files systems and git(hub) are your thing be prepared for some drastic adjustments.
Also, it is quite slow. But it is definitely worth a look just for the added insights into what programming could be like.