Everyone, myself included is prone to indulging in confirmation bias. I wanted Kane last summer so when people I knew told me it was definitely happening, I believed it and ignored the Spurs side. Equally, people who didn't want it to happen were yelling that City weren't interested. Ultimately, transfers are complicated and even those closest to a deal can think something will happen, only for it to not happen.
I always think back to Dani Alves and City having a contingent waiting for him, when he was on a plane to Paris.