Exercise in futility.
You might think that it's kind of pointless to ride a stationary bike.
I mean, why put all that effort into balancing and gripping the handlebars and peddling like crazy when you're not even going anywhere? Sometimes it can feel like you're just using up a lot of energy for nothing.
And you know what? Biking on a stationary bike can be a little pointless. But it's also pointless to eat a candy bar a few minutes after you just brushed your teeth and that didn't stop me from doing it just now.
Anyway, the point here is that everything is pointless and nothing has a point.
Except for this, which has a point about pointlessness. But that doesn't count.