i'm pretending it's sunday so this counts as last week's entry

Lately I've been thinking a lot about unobservables, which is completely a noun. They're a hot topic in the philosophy of science, because it's actually kind of hard to tell whether some very tiny things exist.

Take neutrinos for instance, which are a type of particle that are streaming through your body right now with no effect. They in fact can go through a mile of lead without reacting to it. But they are involved in some stuff, such as solar flares. Detecting them involves (I'm not kidding) a gigantic vat of cleaning fluid buried underground becoming slightly radioactive over time.

But what if neutrinos don't exist and this indirect observation of them is caused by something else? It's perfectly plausible: since you can't just point to a neutrino, maybe they're imaginary. Now, one obvious answer is to point to the success of science at this sort of thing. Scientists are pretty good at predicting phenomena they can't observe--only to have it confirmed later when the technology advances.

Another argument is to simply ask why we should care if neutrinos exist. All we should talk about is if this theory is useful at making predictions and such. It doesn't matter, in a sense, what these unobservable things are. Those of you playing along at home might be thinking to yourself: "hmm, isn't there something at kung fu we can't observe, but prove through its effects?"

Well good job, rhetorical device! We have, of course, chi. I know some people are uncomfortable with, or at least sceptical of, the concept of a mysterious energy (characterised by some sources a breath) that pervades all living things and the earth. But the wacky stuff that many of us are capable of and the utterly mind-blowing feats performed by masters around the world should at least let you know that something is going on.

If you're not sure what it is and don't like that fact, just relax, maybe chi exists, or perhaps it's neutrinos that gives people strength without using their muscles. Point is, whatever causes these things is, well, causing it—so calling it chi can be seen as a handy marker.

Not a very funny entry. I'll try and liven it up:
Tom was brushing his teeth one morning when he bumped into the sink. "Oh no, I've knocked over my toothpaste!" He said, crestfallen.