How 1+1 becomes 2

A five-part journey from the expression 1+1 to the physical switches that produce 2. Read the parts in order:

1. How 1+1 becomes a list of 1s and 0s (part 1/5)
2. How a list of 1s and 0s becomes tiny, physical switches (part 2/5)
3. How tiny, physical switches learn to remember (part 3/5)
4. How tiny, physical switches learn to follow instructions (part 4/5)
5. How 1+1 becomes 2 (part 5/5)