When I started the publication project with Herbert Gintis on the homo socialis (Gintis and Helbing, 2015), the most important motive for me was to trigger a scientific debate. So, from my perspective, our joint paper on the homo socialis is not to be seen as an end point or eternal truth, but as the starting point of a new theory for socio-economic systems. In this comment, I will expand on my paper with Herbert Gintis, and I will use the opportunity to present some further thoughts and materials.