Reading demand: the trend tools that show what people want next

The frame "Why now" is the hardest part of an idea to fake. A gap that has sat open for ten years is usually open for a reason. The interesting gaps are the ones a recent change just created — a new platform, a price that fell, a regulation, a behaviour that shifted. Trend tools are how you spot those while there is still room. Leading vs lagging A lagging signal says a market is already big and contested — funding rounds, incumbents hiring hard, a crowded review category. A leading signal says it is forming — search volume climbing off a low base, the same question asked over and over in a community, a scrappy tool getting traction it didn't pay for. You want leading signals. By the time it's lagging, you're late. The free toolkit · Exploding Topics — surfaces terms whose search volume is accelerating, with the curve. Good for "is this a thing yet". · Google Trends — plot any term over five years. A steady climb is a trend; a single spike is a news cycle. Compare two terms to see which is winning. · Product Hunt — what's being launched, and which launches draw real comments rather than polite upvotes. A category with three scrappy launches a month is heating up. · Hacker News — "Ask HN" threads and the comments under launches. Search your problem; if people are already hacking around it, that's your leading signal. Spike or trend Before you believe a line going up: is the growth off a low base or already saturated? Is it seasonal — check the same month last year. Is there a structural reason it continues, or was it one viral moment? A trend you can explain (this got cheaper, this became possible) is one you can bet on. A line with no story behind it is a guess.