Very early, yeah.
Commutativity and associativity might sound the same, and indeed most commutative operations are also associative. But there are a few math operations that are only one or the other. Matrix multiplication, for example, is associative but not commutative Matrix multiplication - Wikipedia en.wikipedia.org/wiki/Matrix_multiplication#Non-commutativity . And surprisingly, floating point arithmetic — i.e. any math operator in JavaScript — is commutative but not associative Associative property - Wikipedia en.wikipedia.org/wiki/Associative_property#Nonassociativity_of_floating_point_calculation ! ↩
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What I don't buy is the claim I keep seeing that telemetry is useless and doesn't actually help. I can only speak to Firefox telemetry, but I presume the lesson generalizes. Telemetry has paid for itself many times over on the technical side - stability, security, performance, and rollout safety. If you trust the publisher and want to help them improve the thing you use every day, turning on telemetry is the lowest-effort way to do it. If you don't trust them, or just don't want to... cool.
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