Tools for Humanity has struggled to generate revenue with its iris-scanning "Orb." JUAN MABROMATA/AFP via Getty Images Tools for Humanity, a startup co-founded by Sam Altman, is laying off employees. The company has struggled to show how its eye-scanning "Orb" can generate revenue. It's unclear how many employees would be affected by the layoffs. Tools for Humanity, the eyeball-scanning startup co-founded by Sam Altman, is laying off employees, according to an internal email viewed by Business