Review of presentation by Marc Millis former NASA breakthrough project co-ordinator and Tau Zero founder.  
Post date : 2012 Aug 10'th  
After watching Marc Millis's presentation of physics for starships and other material it seemed a great idea that a vehicle having attained terminal velocity luminal even superluminal velocity should release a gas sphere alt dry ice in which it is enveloped, possibly ahead of the vehicle, to act as transit shield for duration of voyage to near or far systems avoiding potential collisions with micro bodies which may or may not be present past the oort field. Should be a basic maneuver, accelerate to a integer of light speed stop accelerating, the vehicle mass is at rest. Release a boron cloud and position the vehicle behind it.
Transit energy postulates by Marc do not take into account paradigm shift of upcomming technologies.