1.) I really was hoping to go for a couple of more years before having to deal with a poorly behaving high-power RF amplifier.
2.) Whenever someone says that quantum mechanics should be understood at an intuitive level, I wonder if they never had to occasionally take solace in the mathematics earlier on in their education. While it was fleeting during intro E&M at university, the intermediate E&M class did have me routinely finding some sanity in mathematics. Perhaps my intuition is just exceptionally poor, of course.
3.) Given all the hoo-ha about AFM recently, I thought this was interesting and timely.