A: Recently, there're many news about electric vehicle innovations. Is it good or bad you think?
B: Of course it's a good news. It means we realize the importance of "green technology".
A: However, some people see weak points from electric vehicles.
B: Such as?
A: The maximum speed is limited and there're only few places to recharge the battery.
B: About the limited speed, I think it's a good point. It means the vehicle will be safe.
A: I guess, sooner or later, electric vehicle will dominate our transportation system.
B: I think so... if the places for recharging the battery are spread in many places equally.
A: Not so long ago, there were ideas about flying car. In fact, we still can see the pictures on internet now.
B: Yeah... but, it seems the idea wasn't the good one. Flying car is very expensive and considered unsafe too.
A: So, electric vehicle is better? How do we solve the problem of traffic jam in many cities around the world, then?