Compare familiar tools without assuming every digital tool is AI.
A timer rings after exactly ten minutes. A photo app groups pictures using patterns learned from examples. Both are digital tools, but their decision processes differ. A fixed instruction is not, by itself, evidence of machine learning. Real products can combine rules and learned models.
Notebook: write your corrected or unresolved conclusion, the evidence you actually checked, and a reflection. Do not include passwords, identity documents or private information. Original BrainCheck companion content, BCAI-v1.