This 3D-scanned insole is another example of placebo tech

Why not get your custom insole engraved?

This is Optimizer, a weekly newsletter sent every Friday from Verge senior reviewer Victoria Song that dissects and discusses the latest phones, smartwatches, apps, and other gizmos that swear they're going to change your life. Optimizer arrives in our subscribers' inboxes at 10AM ET. Opt in for Optimizer here.

I take my feet seriously.

Which was why, in December, I found myself in an office, propping my leg up on a chair as a tech startup...