Too many people in this thread fail to differentiate between learning factual knowledge and realizing an experience. If a man trips and falls in front of you, you did NOT learn that a man has tripped. The reason why this derails the thread is because the purpose of the thread is to share your discoveries for mutual benefit. Understanding how fast you can ride your bike or that you had spyware on your computer is merely self-serving, and is therefore pointless. :mad:
A more appropriate example would be something like this:
Today I learned that rough objects create less drag than smooth ones. Hence the reason why golf balls have dimples.