How do you REALLY know an autograph is authentic? In the sixth and final part of our marathon Sports Cards Live conversation, we tackle one of the most uncomfortable questions in collecting: How much faith should we place in autograph authentication? The discussion centers around the 1952 Bowman Mickey Mantle owned by "Uncle Barry," a card he has owned for roughly 70 years and believes was personally signed by Mantle. PSA authenticated the autograph and has stood behind that opinion, but longtime autograph expert and former PSA authenticator Steve Grad recently presented a detailed case questioning whether the signature is actually Mantle's. So who's right? We discuss why autograph authentication may ultimately always be an opinion, how much confidence collectors should place in third-party authentication, and whether a signature can ever truly be considered 100% authentic unless somebody actually witnessed it being signed. David Chase then proposes a fascinating alternative: What if AI could analyze enormous databases of known exemplars and assign an autograph a confidence rating instead of simply declaring it authentic or not authentic? Would you rather know that an autograph has an 87% probability of being authentic than receive a binary opinion from a human authenticator? We also discuss witnessed autographs, the possibility of sophisticated forgeries already existing in slabs, altered and counterfeit cards, and a larger reality collectors may need to accept: no system involving human judgment is going to have a zero percent error rate. Earlier, we continue our spirited discussion about market manipulation, personal responsibility and buyer beware. If an influencer talks about a card and you rush out to buy it, how much responsibility belongs to the influencer and how much belongs to you? We also revisit manufactured rarity, the difference between total population and the actual "float" available to collectors, whether the word "grail" has lost its original meaning, and why greater affordability might actually be healthier for the hobby over the long term. Finally, we close our post-National marathon by looking ahead to what Jeff Hart calls the beginning of a new hobby year and reflecting on why, regardless of prices, markets, grading companies or slabs, we're still collectors first. As one viewer perfectly put it: "Collect because you love the cards. Let the value be the consequence, not the purpose." Featuring Jeremy Lee, Joe Poirot, David Chase, Jeff Hart, Chris McGill and Joshua Adams. 👍 Like the episode and subscribe to Sports Cards Live for more hobby discussion, interviews, analysis and live shows. 💬 Let us know in the comments: How much confidence do YOU have in autograph authentication? Would you trust an AI-generated confidence score more than a simple authentic/not authentic opinion? 📊 Take the Hobby Spectrum assessment and discover where you fit within the hobby. 📖 Check out Pops and Comps: Truths, Insights, and Psychology Behind the Numbers that Drive the Sports Card Market. 🔎 Check out Auction Wire using the Sports Cards Live referral link in the description and receive 63 days instead of the standard 30-day trial. 📈 Research card values, historical sales and market trends with Card Ladder. Check out our link in the description. 🔗 You'll also find links for Fanatics Collect and more ways to connect with Sports Cards Live in the episode description. 🎙️ Listen to Sports Cards Live on Apple Podcasts, Spotify and wherever you get your podcasts. Thanks for watching, listening and being part of the Sports Cards Live community. Learn more about your ad choices. Visit megaphone.fm/adchoices