Another insightful article about game design from Gamasutra. This one actually encourages you to stop reading, theorizing, and thinking up ideas... And start doing the -work-. I like this one a lot.
https://www.gamasutra.com/blogs/AlvaroSalvagno/20191213/355660/Inspirati...
Ideas in themselves are not a solid foundation to build a game on, though. But they might be good enough to get started. In the end, all that matters is that the idea allows you to get to work. Notice the sentence there : the idea allows you to get to work. It is not the work itself.
I hope you enjoy reading this... And then get off your ass and start doing the work. :)