Dinosaurs Were Cold-Blooded Animals, Right? Maybe Not

True knowledge exists in knowing that you know nothing.
SocratesGreek philosopher in Athens (469 BC - 399 BC) 

I thought this Socrate quote applies perfectly to this recent discovery:

Dinosaurs Might Have Had Warm-Blooded Animals' Fast Metabolism 
[Link to article]

It always feels weird when one challenges things you took for granted, but that's the wonder of science.
To me, Dinosaurs being cold-blooded was as natural as 1+1=2, so the simple fact that this alleged fact can be questioned is quite dazzling.