Finally flitted off to sleep at 2 am . It was a blazing hot day on Sunday , the day of the race . It started off pretty nicely at 8 am and everyone had a good swim but by the time it reached the bike and run segments , the sun was absolutely crazy ! I really admire these athletes for being able to bike 40 km and run 10 km in that heat .

Give answer the following question using evidence from the above passage: What may be the reason for the sun being crazy ?
The sun was very bright .