....yeah I've watched a YouTube video on Bike road craft, where the guy talks about looking up the road to the vanishing point / furthest point of the bend where it disappears... plus ensuring your current speed is suitable that you can stop within that distance, should there be an obstruction just past that perspective point, queue of cars, etc...
Obviously that vanishing (perspective) point will be further or nearer, depending if you are on a straight, negotiating a slight bend, or sharp bend.... Why go into a corner "blind" at full speed, ASSUMING there wont be something just around that corner (you've not yet seen)!?