The problem is that for every iPhone, there are 99 other technologies that are not adapted to the world, and fail as a consequence (3D TV where you have to wear polarising glasses at home or sit at exactly the right angle to the screen, anyone?). It's not a hard problem to look back at what has already happened and explain it with your pet theory, as long as your theory is sufficiently flexible. Using a theory to predict what's not happened yet, and getting it right - now that's where the real money is. The model as presented here doesn't seem very strong at identifying what upcoming technologies will be the strong ones, but really good at explaining things retroactively. As an investor at least, that's of limited use.
On blockchains specifically, I can imagine a world where in 10 years' time bitcoin has completely collapsed. In fact, Satoshi has the possibility to create such a world if they still have the private key to their initial coins. I can also imagine a world where private/regulated chains are widely used and permissionless ones less so, or one where permissionless chains have taken off in a way they haven't yet. It's really too early to tell, although the Ethereum/DAO experiment makes me pessimistic.