The excerpt/summary of the study from the source is so vague nothing real can be gleaned from it. Probably a similar study can conclusively show that most people prefer to be left to their thoughts and not engage the world around them. So what does this tell us?

An interesting question, one which many have thought of, not only you. We've come a long way from punch cards to almost English-like scripting and query languages. Once the domain of only professional programmers, building programs is now a hobby for many with little or no formal training in programming. That said, there's a huge difference between building controller firmware and code to transfer money from one account to another. But I digress, the original question had to do with programming languages, and there I must agree with a lot of what's being said, in that, so long as it remains the domain of mathematics, it's unlikely that it will become too abstracted from text based methods. I come from the Assembly and C world, and the new 4GL languages aren't that exciting for me. But that's me, and I'm pretty much on my way out.