This chart shows why Pokémon Go’s server collapse was inevitable

When Pokémon Go launched in July, it was nearly unplayable at times due to overloaded servers. Now, Google is giving a look behind the scenes to show fans exactly why that was unavoidable.

Pokémon Go generated 50 times more traffic on Google’s Cloud platform than developer Niantic was expecting, the company said today. The location-powered monster-catching augmented reality app was so popular that it was pinging the cloud 10 times more often than even the worst case scenario that Niantic and Google could possibly conceive of prior to launch. Eventually, after spooling up tens of thousands of cores in the cloud, Google and Niantic were able to meet the demand, and that pushed Pokémon Go into becoming the fastest ever mobile app to generate $500 million from the $36.6 billion gaming industry on smartphones and tablets.