This reminded me of my uncle who is an artist. He told me once that he would paint three or four pictures at the same time, because while some part of one paint

This reminded me of my uncle who is an artist. He told me once that he would paint three or four pictures at the same time, because while some part of one paint was drying he could paint another. I think something similar happens with entrepeneurs, some parts of a project (or idea) needs 'to dry', you need time to pass to understand it better, or leave it 2 or 3 hours to address that what you've written is BS. So having multiple projects lets you use your time more effectivelly and also forces you to let things 'dry' because you have other things to do.