In 2050, what will be the fastest mode of transportation? 
human
Oh, it will still be car! 
assistant
yea why not 
human
But will it still be gas? 
assistant
i dont think so 
human
oh right because there will be so many trucks but then that will lead to traffic
assistant
In 2050, what will be the fastest mode of transportation? 
human
Oh, it will still be car! 
assistant
yea why not 
human
But will it still be gas? 
assistant
i dont think so 
human
Is it electric?
assistant