[ippisl]

I'm not so sure all of the barriers to entry have evaporated. they have just changed.

You can look at netflix , amazon , google and apple and the ISP's. each have a huge competitive barrier : wheter it's huge customer base , big data , big "relationships" , huge brand , huge brain trusts, large manufacturing volume, network effects, large costly infrasturtuce or a very very efficent logistical system. those are things that costs alot of money and are not easy to scale.

And if all that doesn't work , in many cases you can just buy your future disruptor.