Don't fall for this. Really, get yourself a technical co-founder. Amaze him. You can call him in the middle of the night, telling your new idea. Next day, he will already had done dissecting it and have a technical spec ready. Or any other crazy stuff that you want and he will say simply "No". You have no idea how useful is a "No" in a start-up. And so on, and so on...you get the picture.
PS. I am using a neutral "he" here.