Flying cars or Hyperloop: Uber, Tesla fight it out on Twitter

Ride-hailing app Uber has announced that it will start its ambitious flying taxi project in Los Angeles by 2020 to deal with the city's traffic problem.
Uber has also signed a Space Act Agreement with NASA to create a new air traffic control system to manage low-flying autonomous aircrafts.
On the other side, Tesla is currently working on building tunnels to connect New York and Washington DC as part of its Hyperloop projects.
The debate began when a journalist tweeted on Thursday on behalf of Khosrowshahi who is in New Delhi to attend an event.
New @Uber CEO @dkhos says why do you need to dig tunnels for @HyperloopOne @hyperlooptt when you can fly? Challenge… https://t.co/tSNIQvZOvC
— Anirban Ghoshal (@journoanirban)
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Musk replied to him:
@journoanirban @Uber @dkhos @HyperloopOne @hyperlooptt @vccircle @vccstartups If you love drones above your house,… https://t.co/57GJSwh4pX
— Elon Musk (@elonmusk)
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The Uber CEO replied back to Tesla CEO:
Challenge accepted. Improved battery tech (thx 2 @elonmusk) and multiple smaller rotors will be much more efficien… https://t.co/O4cYw1yP7e
— dara khosrowshahi (@dkhos)
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Khosrowshahi also had a discussion with the Indian government over airport partnerships and future of commercial air travel.
Great meeting with the Minister of State for Civil Aviation, @jayantsinha, to discuss airport partnerships and futu… https://t.co/6KDo1EGXqH
— dara khosrowshahi (@dkhos)
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On February 18, the Maharashtra government announced that it has entered into an agreement with Virgin Hyperloop One to construct a hyperloop route connecting Mumbai and Pune by 2025.