What is Plot point & Turning point in storytelling

How Everything Works on Instagram: "More than 15 years later, the ending of Inception is still debated. The final scene deliberately withholds a clear answer. Cobb’s spinning top, used to distinguish dreams from reality, is set in motion, but the film cuts to black before its outcome is revealed. Rather than confirming where Cobb truly is, the moment shifts attention to something more meaningful. For the first time, Cobb walks away without waiting for certainty. Reunited with his children, he ab