Nothing is impossible, only the limits of our minds define certain things as inconceivable. It is often necessary to solve several equations to admit a new reasoning.It's a question of the time and the limits of our brains. To graft a heart, to fly a plane of three hundred and fifty tons, to walk on the moon had to ask for a lot of work, but especially imagination.So when our learned scientists say that it is impossible to graft a brain, to travel at the speed of light, to clone a human being, I tell myself that in the end they have learned nothing from their own limits, that of considering that everything is possible and it is a matter of time, the time to understand how it is possible.