- Mobile experiences fill the gaps while we wait. Nobody wants to wait while they wait. Mobile needs to be fast.
- To make things on mobile feel really fast you need to invest in back-end and front-end design –in design and engineering. Design can be a speed feature.
- Upload is what got people most excited about the speed of Instagram early on. Most apps upload only after they have all the info they need. Instagram uploads right away while you fill in the rest of the information about your photo like captions and location. This is a non-optimal engineering solution but it makes the app feel much faster. It’s worth it even if you throw the photo away.
Mike Krieger of Instagram at the Warm Gun, quoted by L Wroblewslki