High school calculus. These three words may resonate differently with different people; for me, it was really a love-hate relationship. I loved that course, because I actually like math. At the same time, I did not like that course, because I did not understand what half the stuff meant until years after I have entered engineering in university. One of the topics discussed in the curriculum was optimization. Basically, in order to find the point in the graph where the input variable produces the highest corresponding out, simply take derivative of the formula about the input variable, set the derivative equal to zero, and solve for the input variable. If you have no idea what I just wrote, basically, optimization is just about finding the sweet spot. Simple enough, right? Well, a few months ago, in my fourth year Electrical Engineering class in designing wireless communication systems, the very type of question was asked on a quiz. While most students in high school could probably have solved it in about two minutes, I had some real trouble recalling the product rule and chain rule, so it took me over half an hour to figure out the right answer (I did the rest of the quiz in less than ten minutes, and I ended up with an A+ in that course). The sad part is, apparently, the majority of the class got that question wrong. In the real world, optimization -- or finding the sweet spot -- is something we evaluate more often than we think, even if you have no idea how to take the derivative, or recall any details on the product rule and chain rule. Recently, Silicon Power sent over their latest Superior SDXC UHS-I U3 64GB card for review. Sure, it is not as fast as the Kingston SDXC UHS-I U3 64GB I have reviewed back in April. But for half the price of the competition, do we have a classic case of optimization in our hands? Read on to find out!