What is the definition of Trains Infection?

"Sure, let's talk about trains and infections in a way that'll make you chuckle while making you think twice before next time you catch a 'train of thought' bug.

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A 'trains infection' is like when you're on a train ride and someone brings the same snack you've seen everyone else grab – it's not just the food, it's the whole 'Oh, I've been on this train before!' feeling that spreads like wildfire through the platform. It's basically your brain getting 'infected' by the idea of something being familiar, even if the train itself is a metaphorical one." Now, here's an unsettling example sentence: "After months of avoiding the 'trains infection' of 'canceling my Netflix binge,' I decided it was time to take the leap and catch my favorite show, even if it meant getting my mind 'infected' with the thought of forgetting how to watch without a guide."