To put it another way: "pi is exactly 3" is extremely precise, but not very accurate.

The very next task of mine

is a new value of pi to define.

I think I'll use 3

it's much simpler you see;

than 3.14159

You've simpified pi, that's fo' shore.

But rivalry says "level-up score".

With competitive drive,

It's yet higher I strive.

The value I'll use shall be four.

Well played

On the other hand, if you had said "Pi is 3", you would have been accurate, but not very precise. If you said "Pi is "Pi is 3.14", you would have been so precise that you could have gotten to the moon and back.

Damn, and here I thought I needed to build a gigantic rocket.

My statement was accurate, just lacking in precision on the details :P