Something is confusing me, it's about real world units vs abstract ones and what should be abstract and absolute.
Here's my problem:
1 dog + 1 dog = 2 dogs
A dog is an abstract unit, all dogs are different, yet this equation still makes sense. You can't convert a dog to a number of equal particles (so you could relate it to other objects) and say for example:
1 dog = 5u
2 dogs = 5u + 5u = 10u
In the other hand, if you have a dog named Morgan (a unique dog), you could say:
1 Morgan = 3u
1 Morgan + 1 Morgan = 2 Morgans = 6u
But if you do this:
1 Morgan + 1 dog = 2 dogs
1 dog = 1 Morgan = 3u
How do I say that Morgan is a dog and relate them both?
Does it make sense to have any absolute units? Because we don't know everything and everything might change in different places or times.
Thank you.
Well I find something wrong with this equation:
1 dog = 1 Morgan = 3u
Morgan is a dog, but a dog is not Morgan. It's like saying because a human is a mammal, a mammal is a human. But, Morgan is more specific than just "dog", so you can't set them equal to each other.