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J
ack Dorsey is more than just a successful
entrepreneur
; he is an
innovator. Innovative people find ways to make something new and
useful using tools that already exist. As a master programmer and
dispatch enthusiast
, Jack combined his two interests to invent something
new: a way to communicate online using short strings of text. Twitter
posts only allow users to write up to 140 characters, or letters, per post.
Later on, Jack thought about other ways to make the world a better
place. While people had been using credit cards online and in large retail
stores for years, there was no way for small merchants to charge customers
on the go. Jack came up with the idea that led to Square, an
application
for smartphones that allows merchants to swipe credit cards using a piece
CHAPTER ONE
Childhood
Fascination