Dead end versus crossroad.

You probably heard rather often that modern physics is going to a dead end. This is due mainly to the large number of unsolved hard open problems and incompatibility between the theories describing our world at different scales. 

The modest object of this channel is trying to understand the underlying causes of this dead end phenomenon. We shall ask questions rather than give answers which remain the privilege of experts. 

In real life, when we experience a dead end, we can decide either  to step backwards, or to try an alternative way, which very often forces us to chose among the multiple ways of a crossroad . The second choice is more risky but more ambitious. In Science, it may have the advantage of promoting collaboration and long term planning prior to immediate, perhaps illusory benefit.