What are adaptive step sizes?

Adaptive step sizes are like changing how big your steps are when you're walking to a place you know well.

Imagine you're going to the park every day. At first, you take big steps because you’re excited. But as you get closer to the park and you know where you are, you start taking smaller steps, maybe even just one step at a time, so you don’t overshoot your goal. That’s adaptive step sizes in action: adjusting how much you move each time based on how close you are to your destination.

When you’re learning something new, like riding a bike or counting numbers, taking big steps can help you get going fast. But if you always take the same size steps, sometimes you might skip over parts you need to learn, just like skipping stones in a pond and missing the next one.

With adaptive step sizes, you can speed up when things are easy and slow down when things get tricky. That way, you learn more efficiently, just like how you walk faster on a familiar path but slow down when you see something new.