Indeed. Whether our mental 'modes' actually involve different sides of the brain doesn't seem relevant to the point that the articles is trying to make.

Now whether we actually 'switch modes' or not would be relevant. I notice a difference. In fact, sometimes I get the feeling that I have more than just two 'modes'. For example:

- bean-counting/organizing - writing/verbal - coding/logic - research/reading

I sometimes have a day where I can be fully productive, but I simply cannot be motived to perform in some of the above modes...

I wonder if there's solid science on this and if these really are different modes.