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.
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.