Yes, engineering problems take much longer, require more people, and result in much more frustration. I am skeptical that 5 or 6 years would be enough to work out all the problems. But LPP is counting on a flood of money and personnel around the world to be working on those engineering concerns once feasibility is proven. When (if) this thing hits the news. A low cost, proliferation free, no harmful radiation, abundant, small, quiet, ‘holy grail’ of energy solutions…. governments will focus all efforts to get that anode erosion problem taken care of.