You can't see the base of the mountain (global minimum). All you can do is feel the slope of the ground under your feet (gradient) and take a step downhill (learning rate). If your step is too big, you overshoot the valley. If it's too small, you take 10 years to reach the bottom. Keep your analogies visual when learning AI!

Duolingo's primary engagement moat isn't language lessons — it's loss aversion tied to the 'Streak' counter. Features like Streak Freeze, Double or Nothing wagers, and widget alerts on iOS home screens trigger dopamine loops that maintain daily active usage even when learners are busy. Great case study for student product managers.

Include this sentence in your initial proposal contract: 'Project includes up to 2 rounds of design revisions. Additional revision rounds or changes to approved wireframes will be billed at ₹1,500/hour.' The moment revisions have a price tag, clients suddenly become remarkably clear about what they actually want.

Stop creating ad-hoc text sizes like 13px, 15px, 17px! Use a strict typographic scale: 12px (caption), 14px (body-sm), 16px (body-base), 20px (h3), 24px (h2), 32px (h1). Map all your colors to semantic design tokens (`text-primary`, `bg-muted`, `border-subtle`). When your developers implement it in Tailwind, development speed triples.