Start with the early 70s. The housing problem started around then. Some years they went up by 20-30% in value. My parents were on track to lose their relativ

Start with the early 70s. The housing problem started around then. Some years they went up by 20-30% in value. My parents were on track to lose their relatively modest 1800 square foot house in San Jose just 6 years after moving there despite being dual income tech workers at the time. Note that it predates prop 13, so I hope that doesn't play a central role in this enormous mountain of evidence.