This sounds really interesting but would it negatively impact the speed of an app to have this…
Tim Boucher

With respect to the performance question, the detailed answer is here Spoiler alert: “nope” :)

To add a bit more color to that: It turns out that modern browsers provide a set of APIs that make it surprisingly cheap to capture all this data without impacting performance in any user-visible way, as long as you tread carefully. And we’re always tweaking the recording code to optimize it further.

As for the storage question, if you’re comfortable with the price, then it’s entirely our problem to ensure we can store this data without breaking the bank!

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