I've seen those studies and his discussion of them. They all show that people would have to be paid a lot to stop using the internet (and they'd still be benefiting from its side effects), and they'd pay a lot if that were the only option. That indicates a huge consumer surplus, since you don't have to pay a lot for a base level of internet access.
Do these studies take into account the collective action problem? It's clearly extremely costly to forsake the internet now that everyone expects you to use it, both privately and professionally, so that it would render you an antisocial weirdo and likely unemployable. I certainly wouldn't accept it for anything less than a fortune, but on the other hand, I could definitely see some serious upsides if the state of communication technology were magically reverted twenty years back -- so much that I would have to think carefully about the answer if I were given this offer by some supernatural force.
Also, of course, preferences that are stated rather than revealed should always be taken with extreme skepticism, since they're likely to be heavy on signaling.
... which only reinforces the point that the study doesn't fully measure how much it's changed our lives for the better, doesn't it?
SIAI benefactor and VC Peter Thiel has an excellent article at National Review about the stagnating progress of science and technology, which he attributes to poorly-grounded political opposition, widespread scientific illiteracy, and overspecialized, insular scientific fields. He warns that this stagnation will undermine the growth that past policies have relied on.
Noteworthy excerpts (bold added by me):
In relation to concerns expressed here about evaluating scientific field soundness:
Grave indictors:
HT: MarginalRevolution