Possible Resolution of Black Hole Singularities from Large N Gauge   Theory
  We point out that the recent conjecture relating large N gauge theories to string theory in anti-de Sitter spaces offers a resolution in principle of many problems in black hole physics. This is because the gauge theory also describes spacetimes which are not anti-de Sitter, and include black hole horizons and curvature singularities. 
Gary T. Horowitz and Simon F. Ross