old links redirect when you rename an episode.

When you change the URL slug on a laser episode, the old link redirects to the new one automatically.

Why this matters: once you share a link, it's out there. People save it, post it, email it. If you change the URL, those shares break. Now they don't.

Say you post a laser video on social and it gets shares. Later you realize the name is confusing and you want to fix it. The shares still land on the right page. No broken links, no lost traffic.

It's a small thing that makes the whole system feel less fragile.