And if the Universe's parents were to discuss that report card, one parent would say to the other: "Frequently vague? More like eternally vague, and always distracted!"
Vagueness is at the very heart of the Universe, as highlighted for example by the Uncertainty Principle, which applies to so-called "paired parameters" such as position and momentum.
In the quantum world, if you determine exactly how fast something is moving, then you cannot determine exactly where it is.* And if you determine exactly where it is, then you can't determine exactly how fast it's moving.*
These limitations don't arise because of inadequacies in measuring equipment or measuring techniques. Uncertainty is a fundamental, in-built aspect of Reality.
Time/energy is another pair of parameters subject to the Uncertainty Principle. To explain how that works is beyond the scope of this post.
But let's leave the quantum world and take a look at how the Uncertainty Principle could be applied "in real life", firstly re time/energy, as follows:
- The more time you waste, the less energetic you are.
- The more energetic you are, the less time you waste.
- The less energy you have, the more time it takes you to do stuff.
Secondly, re position/momentum:
- The less you know about who you are, the more you know about what you're doing.
- The more you know about what you're doing, the less you know about who you are.
- The more you know about where you’re going, the less you know about where you are.
* Incorrect, grossly misleading and drastically over-simplified. Doesn't reflect the fact that momentum = mass times velocity.