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Explore a detailed scientific analysis of post mass-transfer binary systems that masquerade as black holes in this 16-minute conference talk. Examine how gravitational wave detections, Gaia observations, microlensing surveys, and time domain studies are revealing new populations of stellar mass black holes and challenging our understanding of their formation and evolution. Learn about the complex lifecycle of massive star progenitors, core collapse mechanisms, and the various observational signatures that help distinguish genuine black holes from impostor systems. Discover how recent findings from multiple detection methods are compelling researchers to reassess theoretical models of black hole formation, dormancy, accretion phases, and eventual merger scenarios that produce gravitational waves. Gain insights into current observational and theoretical strategies being developed to address fundamental questions about stellar black hole evolution and the challenges of accurately identifying these objects among binary systems that have undergone mass transfer episodes.
