It's basically the startup equivalent of "indie gamedev wanting to make an MMORPG". You need every edge in technology that you can get (which you will never achieve), and you still need to actually make your game fun enough!

A lot of times, technology isn't really that important in making a good game. Amazon has all the technology they need but still can't understand why people play games, it's hilarious seeing them fail even after all those years of investment.