Personally, I don't think Nigerians are dullards.
If you are looking for the best ideas. I think a Nigerian would be the one to get the easiest and best Idea.
But out of a number of limitations to development of these Ideas, I feel the lack of stable and Steady Electricity supply is the main issue from my perspective because I think development of ideas is really based on the mood and resources.
You are in your relaxation mode, and idea suddenly come to your mind. BUT at that point in time, there's no light in your street to charge your phone and research more on such things.
there's no internet at that particular point in time.
I bet by the time these resources are available you've lost interest.
This is my own opinion about it , Feel free to add yours