They did not, because the number wasn't estimated by adding up predicted time per tracker or service, but by determining this is about the maximum the market can bear - i.e. a steady state of the system.
Curiously, Stratfor also predicted 60% chance of the US going to war with the EU before 2036, due to EU privacy regulation threatening to shut down the increasingly adtech-based US economy.
Curiously, Stratfor also predicted 60% chance of the US going to war with the EU before 2036, due to EU privacy regulation threatening to shut down the increasingly adtech-based US economy.