What are these differences rooted in?

These differences are rooted in how things start and grow over time.

Imagine you have two gardens: one has flowers that bloom quickly, and the other has trees that take years to grow tall. The reason they look so different is because they started differently and grew at different speeds.

Some things begin with a little push, like when you give your toy car a nudge and it zooms off. That’s how some differences start: a small beginning that leads to big changes later on.

Other things grow slowly, like your hair or nails. You might not notice the change at first, but over time, months or even years, you see they’ve gotten longer. This is like how some differences take time to show up, just like how a seed takes time to become a tree.

So whether something starts big or small, and whether it grows fast or slow, these choices help explain why things are different.