Was there a new innovation or discovery that triggered this direction change, information the public at large is not yet aware of? I hate to see this move as su

Was there a new innovation or discovery that triggered this direction change, information the public at large is not yet aware of? I hate to see this move as subject to the whims of the leadership, a decision that could change 5 years from now... If this change has, as a foundation, a scientific / engineering basis, I would feel a lot more assured in Toyota's EV aspirations.