Googled a restaurant and saw it wasnt as busy as it normally is apparently. How does google know that?
In: 374
Using the GPS in everyone’s phones, it directly knows how many people are in the restaurant. It’s the same way Google Maps has live traffic data.
Proof:
[If you walk down the road pulling a wagon full of smartphones, it shows up on Google Maps as a traffic jam.](https://www.youtube.com/watch?v=k5eL_al_m7Q)
If that guy took his wagon of phones to a restaurant, the restaurant would show as “currently extremely busy” on Google.
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