Real people from a real company invited to a real investor meetup in Berlin. They showcased their MMU and everything seemed to be very solid.
It feels you didn't assess this project enough.
Lets give the benifits of the doubt let them prove why they worth the trust of investors, according to thier white paper thier technical presentations I think it is feasible but hopefully it works.because most what I appreciate are thus project that have a connections about green energy protecting the evironment.If we invest must our future and then why we shouldn't invest to protect our mother earth.