Somewhere around age four, it starts. Why is the sky blue. Why do dogs sniff each other. Why can't I stay up later than you. By the fortieth "why" of the day, most of us have run dry on patience, let alone answers.

Here's the thing nobody tells you in advance: the questions never really stop, they just get harder. And that's actually the good news. A kid who asks "why" a hundred times a day isn't testing you, or trying to wear you down before dinner. They've noticed something doesn't add up in their picture of the world, and they've decided you're the person who can fix it. That's a remarkable amount of trust for a four-year-old to place in anyone.

Developmental researchers have a name for this stretch, sometimes called the "why phase," and the honest takeaway from most of it is simple: the asking matters more than the answering. Kids who get to ask freely, and get some kind of real response back, tend to keep asking. Kids who get shushed, or "because I said so'd" enough times, tend to stop -- not because they ran out of questions, but because they learned the questions weren't welcome.

You don't have to know everything. You just have to not close the door.

That's a lower bar than it sounds like, most days. "I don't actually know -- let's find out" is a complete, honest, perfectly good answer. It also happens to model something more useful than any single fact ever could: that not knowing is normal, and curiosity is how you fix it.

If you want backup for the days you're tapped out -- long car rides, the sixth "why" before you've had coffee -- that's the whole reason we built Into Why. One honest, kid-sized answer per question, no feed, no ads, nothing chasing their attention once the question's answered. Just enough to keep the "why" going without you having to have a PhD in everything.

Because the goal was never to make the questions stop. It's to make sure they never learn to stop asking.