If you throw enough bricks a wall will emerge..

In early 2011 Stephen Elop's famous burning platform memo predicted the war of ecosystems. Little did anyone know it would be a reminiscent of the cold war.

In June of 1987, when I graduated from high school, Ronald Reagan stood at Brandenburg Gate and gave what some regard as the last great speech from a sitting president. In our current context where we are surrounded by vitriol and venom, there are some who might argue the actual impact of this particular speech, but there are very few who would deny that, at least in part, President Reagan's speech helped to spur the removal of the wall that divided Berlin. In just 25 years since that speech, it seems that the titans of tech have forgotten the lessons of history.

Twitter Throwing Bricks, Building Walled Garden

In June of 2012, despite the lessons of the historical stagnation of East Berlin and the universal acceptance of Metcalfe's law, Twitter started its mad wall-building crusade by ending its partnership with LinkedIn. Users of both the Twitter and LinkedIn platforms could no longer sync their posts from Twitter to LinkedIn by including the #li or #in hashtags.

While Twitter's intention may have been to preserve its audience, its walled garden approach to LinkedIn has had an unintended consequence. LinkedIn's referral traffic to Facebook has jumped by 1000% and LinkedIn now has surpassed both Google and Bing combined as a source of traffic to Facebook. I ask you Mr. Dorsey, how is that wall looking now?

     in the West today, we see a free world that has achieved a level of prosperity and well-being unprecedented in all human history. In the Communist world, we see failure, technological backwardness"

Soon after the LinkedIn breakup, Twitter threw another brick, this time aimed at Instagram which had just been purchased by Facebook. Twitter removed Instagram's access to the friend feed API which to many observers seemed to be a jab at Facebook.

Soon after the Instagram restriction, Twitter threw a truckload of bricks in formally announcing a series of API changes supposedly designed to prevent other services from cannibalizing Twitter's viewing audience because the ecosystem of data consumers is overpopulated with undifferentiated clones.

On the heels of the big API announcement (which was just over four months after Tumblr started tearing its API walls down), Twitter threw a brick yet again and now blocked Tumblr's access to Twitter's friend feed to prevent Tumblr from growing its own network.