The actual presentation follows introductions and starts at min 7:30
https://psbma-org.zoom.us/rec/share/dMYeOFRiRYzupTjQLZ0owzn76cnGQASx1Uvf__U70ZeKhmbB1hg8syhyk2X--QZ-.8i5RGQLDPIqom6I2
Passcode: !Z?N6igp
You can download the pdf of Lenny's presentation here.