how to do a live product launch (from someone who just did one to nearly 15k people): I just spent the past 3 months of my life preparing to announce 7 products in a 21 minute stream… here's how we did it: 1. lock the timeline with product & engineering I needed to know exactly what would be going live as part of the event, and they needed to know that we were counting on them to deliver every other decision (branding, scripting, studio space, marketing) sits on top of that date 2. start…