I think my physics problem (and nine step solution) demonstrated how difficult it is to think critically about Physics unless you know quite a bit physics and have had quite a lot of practice solving similar physics problems. Your 21st century skills don't seem to be much help here now do they.
RWP also has a post demonstrating the same thing with not one, not two, but three business problems.
And, Pondiscio has, I believe the best post of the week showing how much of President Obama's inaugural speech you missed out on if you lacked the needed historical and literary content knowledge.
For all you connectivists out there I see a pattern emerging.
To paraphrase Edward G. Robinson -- "Where's your google now, nyahhhh?"