Is this any good? I've had it in my list of things to check out for a while but I suspect it might just be TED-talk pop-psych voodoo stuff.
My pace on reading programming books for instance has gone down such that it takes about 2-3 times it would normally take to go through the material, however the difference is unmistakable with respect to how much I know the material. It took me 2-3 years of additional work experience to be at a comparable level in other topics.