Learning Swift

Bought an Apple Watch. Oh my.
Dictionaries use the [] symbols, which is confusing coming from Python where you'd use {}.
&& is used to combine if conditionals and || are used to perform OR on conditionals. Again, different from using the and and or keywords.
Bool is the boolean variable type, true and false are the values, with lowercase charaters for the first letters on the values.
else if is how to define else if in if conditionals, rather than elif in Python.

A Swift protocol is conceptually equivalent to a Java interface. A Swift class that adopts a protocol conforms to the protocol.
A class can adopt zero, one or many protocols.