So here's how rebuilding actually works, the sets designed around it, and the free site that keeps a finished box interesting.

Some hobbies ask you to think. LEGO building, handled a certain way, asks you to stop.

The point of this hobby is the hour or two spent building something, not the theme name on the box, so the best first set is simply the one that sounds fun to sit down with.

LEGO Building App - what it actually does, where it falls short, and when it's genuinely worth the download – for you, or for the person you just handed a set to.

Missing LEGO bricks are genuinely rare, and when they do happen, the fix is free, official, and takes about five minutes of form-filling.

Buying a LEGO set as a gift usually means handing the LEGO Group somewhere between fifty and two hundred dollars. If you're going to do that anyway, LEGO Insiders is the free program that hands a slice of it back – and quietly upgrades the gift while it's at it.

The last time you opened a box of LEGO bricks, the instructions were paper, the bags were plastic, and nobody over fourteen admitted to building. Call it 2006. Twenty years later the bricks still click together exactly the same way – it's everything around them that changed.