Why are these flames too hard to avoid?

Step.

Jump.

Step.

Jump.

Jump.

Step.

When you fall for the illusion of having made it across, your heart sinks.

Because, you haven't.

Jump.

Step.

Jump.

Step.

You skirt to the edge.

But, never reach.

Jump.

Step.

Jump.

Step.

You lift up your head, and try to calculate your progress.

But, can't. Because, you've not made any.

Jump.

Step.

Jump.

Land!

And you fall down, curving into a ball. Burning...