Wow, nice demo. It is interesting to see Wolfram explain his vision for an "ultimate fusion language" -- a powerful multi-paradigm language, a huge standard library, data sources, and deployment all rolled into one. This monolithic approach seems to be the opposite of the Unix philosophy, and I wonder how that will play out.

There are clearly benefits to be gained from smooth integration, and the demo is impressive considering it only uses stuff built into the language. But there's also something to be said for letting different teams of people focus on building smaller and more focused tools which can be combined in a variety of ways. I worry that this Wolfram language will be limited in its usefulness for real applications because it simply tries to bite off too much.