Well, Google Search trends are also only an imperfect proxy for what we are actually interested in.
Eg tap water is really, really useful and widely deployed. Approximately every household is a user, and that's unlikely to change. But I doubt you'll find much evidence of that in Google Search trends.
Eg tap water is really, really useful and widely deployed. Approximately every household is a user, and that's unlikely to change. But I doubt you'll find much evidence of that in Google Search trends.