3 Things I learned:
1. Sound is vibration in the air.
2. A digital signal represents a value as a series of discrete values.
3. Binary is a base 2 numeral system because it uses digits 0 and 1.
2 Things I don't understand well:
1. How a computer uses these numbers.
2. The emphasis on the importance of the number 2.
Something I'd like to know more about:
How is choice the "essence of two-ness?"