Watch out for a false sense of progress.
Recognise! In such cases it's good to realise you can get feedback from many sources. It's not limited to potential customers or a co-founder. Also domain experts, your network, peers. Basically, there's no excuse to get feedback early and often.
The drawing board never tells you: "THIS SUCKS!"
Recognise! In such cases it's good to realise you can get feedback from many sources. It's not limited to potential customers or a co-founder. Also domain experts, your network, peers. Basically, there's no excuse to get feedback early and often.