Talk to the potential customers. See if they will preorder or even commit to trying it out for $1 (the effort in trying the thing out is a big signal they are s

Talk to the potential customers. See if they will preorder or even commit to trying it out for $1 (the effort in trying the thing out is a big signal they are serious, and the $1 is to pass it through the “am I willing to get a CC out for this”.