I've not been there yet, but I'm pretty sure the answer is, "It depends." I think you also have to have some real idea for how you're going to make money on th

I've not been there yet, but I'm pretty sure the answer is, "It depends." I think you also have to have some real idea for how you're going to make money on the stuff. Even if you don't write a real business plan, sitting down and saying, "Our costs will be about this much. We'll make this much per user. So, we'll need to have this many users in a year of it's a no-go." -- doing that can give you an idea of if your ideas sound really nutty or not. The brick wall is an important construct; it's an important idea to have there to keep you scared of what happens when the cash runs out ... but in reality, if you've got a stupidly low burn rate, you just do one week of consulting and then live for the next two months off of that.