In short, this says if you want to fill in a map with different colors so that no two bordering countries are the same color, you'll only ever need four colors to do this.
Why Does Uncertainty Bother Us So Much? | Adam Kucharski | TED · TED
How native speakers pronounce “bordering”
1 example from real videos — listen, replay, loop.
1 / 1
In short, this says if you want to fill in a map with different colors so that no two bordering countries are the same color, you'll only ever need four colors to do this.
Why Does Uncertainty Bother Us So Much? | Adam Kucharski | TED · TED