Okay, here’s the deal:*
You have 53 districts in California to divvy up. Assume that every voter has a SSN. Assume that the distribution of final three digits of SSNs is fairly uniform.
The representative from District 1 will represent those voters whose SSNs end in 000-018.
The representative from District 2 will represent those voters whose SSNs end in 019-037.
The representative from District 3 will represent those voters whose SSNs end in 038-056.
And so on.
Seven of the districts will represent blocs of voters with eighteen unique final threes.
Each state will adjust this formula to accommodate the total number of congressional districts. There you have it. No gerrymandering.
*Read that to yourself in a Ross Perot voice, so it sounds as crazy as I intend for it to sound