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Probably the winner will take the largest share from its segment. But it's hard to visualize how the whole blockchain industry will look in 5-10 years. Like today we don't have a single giant internet company.

Thats true but on the other hand we have google being the winner on search engines, facebook (current :)) winner on social media, apple hardware...

So for smart contracts there could also be one winner, another one for currencies,...

My head starts hurting if I think about it too much.

But its clear the world is changing. Im working for a large telecom company and blockchain technology is clearly pushing for attention :)