He does talk later in this lecture about how interfaces are changing the way we learn and adapt to information (a la Marshal McLuhan).
And we really should not, again, underestimate the value of that kind of analysis. Your ability to look and a complex dashboard of information, adapt to it on-the-fly and figure out what's relevant to you, what's not relevant to you and then switch to a new interface and figure out what's relevant and figure out how you can use it and how you can twist it, and how you can push it in new directions.
When you think about the workplace of the future... is the ability to adapt to new kinds of information and new interface and manipulate toward your needs and figure out what's relevant and what's not relevant, what's more important? To do that or the ability to do algebra?