Awwww this is so sad yet happy at the same time! :) Its sad because the first cub died and they had to be born in captivity, but its happy because they didnt ALL die, and also that they are living breathing right now and are able to live and experience the world atleast a little bit.
I love electronic stuff, I think this would be very cool. But I do know that they would have a lot of roads to cover so this task of making a ton of roads a charging thing could take until 2023. Its not an easy thing to do. But this is REALLY cool!!!