If I had to describe myself to an alien I'd say I was bigger than the average human, enjoy a drink or two with a good meal and have a bigger head than most. I'd also say I'm really handsome - especially if they were a female alien.
It's amazing how fast generations lose sight of other generations. One of the first things the young composers who come to work with me say is that they want to write music people will like, instead of gaining their credentials by being rejected by the audience.
The average trade of an individual is in the thousands of shares, whereas the institutional trade can be in the millions of shares. Clearly, the bigger the order, the bigger the move in the stock.