We rely on testimonials in one form or another on a daily basis. Your friend tells you about a new flavor of LaCroix, and you order a pack on Amazon. Your coworker Slacks you about a tech newsletter she signed up for, so you subscribe. We’re curious to try new things because we try to improve ourselves and seek better outcomes. But new things can be risky, and outcomes are unpredictable. Testimonials from friends and…