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Ideas don't matter. Execution does. OP gave a taste of their opinions on execution. Seems sufficient to me.

Ideas do matter, there are a lot of useless ideas. Good ideas _alone_ don't matter if you can't execute.

Either way it's helpful to know what field OP wants to work in, especially when trying to find a cofounder.

Part of execution is being able to competently execute the process of having an idea.

It is just not the entirety of execution.