You have more information in your pocket than any king ever had. Understanding still has to be earned.

Access and understanding are separate things, and only one of them got easier. Having everything available makes it feel like you almost know it, because an answer is always a few seconds away, so the work of taking it in never quite begins. Information arrives free now. Comprehension still costs what it always cost.

Pick one thing you have looked up several times and never retained, and learn it properly this week. Close the tab and explain it out loud to yourself. If you cannot get through the explanation, that is the honest measure of whether you knew it.