2. No, you're not aware when you have to slam on your brakes. The descent can be 10 minutes long at a high speed. You don't know every single corner by heart. You look at the map.

3. The people at the front know where we're going, but sometimes they miss things. It's nice to shout things at them when they do. They also rotate. I know there's a bit of gravel on this road, but they don't. I tell them. I know because I know we're passing town X or side street Y.

4. Even in a group, I'd like to know if there's a sharp turn coming, going into the city, etc. I want to know my heart rate, power, cadence, etc. I'd like to know how long the false flat that we're on lasts or when the next climb is coming up.