"I can go over it in more detail when I actually have some communication things to present. For now, I'd better get to work. Have a nice couple of weeks!"

And he goes and finds that moneylender's grandson and explains the 'hiring him' condition on the loan, hires him, and sees about getting raw materials and a workspace.

Four days later he has a miniature generator on wheels that will take heat from a woodstove under it, and a long string of electric lights. He rents a wagon and drapes it in brilliant light and drives it around the city to advertise this new product.