Gili: Thanks for having me, Spiffy! Do you know that nine out of ten adults and more than half of the children have tooth decay? Dental cavities (tooth decay) are unpleasant to have since they cause pain, infections, unpleasant treatments in the dental office, and they make our smile ugly. As scientists we know exactly how dental cavities form and grow. We also know that at early stages, dental cavities are reversible, which means you can treat them without any drilling or fillings. The problem is that at this point dentists don't have the right tools to identify cavities at these early stages, and therefore they do many fillings. This is where CaviSense is getting into the picture. We developed a device that helps dentists to see these early-stage cavities and reverse them.

Mandy: Thanks for having me, Spiffy! I started Official Black Wall Street (OBWS) to support a community in need. Growing up in Brooklyn, New York it was common to see Black-owned businesses on just about every block. Unfortunately this changed drastically with the rise of gentrification. I watched as one Black-owned business after the next closed down, many of them no longer able to keep up with the rising costs of gentrification and compete with the neighborhood's new Targets and Starbucks. I found countless stats illustrating how challenging it was, still is for Black entrepreneurs to gain the funds needed to excel in business. So I launched the OBWS platform and app to become an advocate for Black Business owners and to help our entrepreneurs gain the exposure, support, and resources they need to thrive.

Thanks for having me, Spiffy! I am an investor at GSV Ventures, a global venture capital firm that invests in startups that are transforming the $7 trillion global learning and skills market. We look to back mission-driven founders who are expanding access to education.