The podcast episodes provided discuss various aspects of biometrics, including its use in consumer technology, security, and privacy concerns.

Several episodes explore the use of biometric identifiers like palm prints, fingerprints, and facial recognition in commercial applications, such as Amazon's palm-reading technology at Whole Foods and the potential for biometrics to replace traditional workplace security measures like badges and passwords.

The episodes also delve into the privacy implications of biometric data collection and storage, as seen in the discussions around Worldcoin's use of eye scans and the INVI Mindhealth app's use of biometrics for mental health monitoring.