Bike porn

But surely if you're using one less sense then the others do become enhanced as part of your brain is freed up. I'm not a doctor so I could be/probably chatting a whole load of shite.

No.

cover your eyes, and you'll automatically end up being very careful, point being, it just mean you concentrate on using your remanding sense, and that give the impression of an 'enhanced' sense.

As for me, I don't have enhanced eyesight or anything, when riding a bicycle, I just look back more often than you do, observed the traffic junction a lots for example; will the car slow down when the light change to amber? will peds step out? how many peds there is? how many cars? are they're disgruntled? how many of them are impatient? is there's any obstruction on the road? is that car going to turn left? any emergency vehicles going to turn up? is the road surface fine? i.e. no potholes or drain cover? is the cyclist in front of me going to jump a red light? is the cyclists behind me is going too fast? will there be parked car in front of me? is that drivers on the telephone? etc.

You'd be surprise how much you use your ears when you ride your bike.