As a data-driven NBA analyst, I dive deep into James Harden's playoff performances against top-tier stars like LeBron, Curry, and Durant. The numbers don't lie - despite his regular season brilliance, Harden has consistently fallen short when it matters most. From his infamous 12-turnover game against Curry to being outplayed by a one-handed Klay Thompson, we'll examine why 'Playoff Harden' remains an unfulfilled promise.