He proposes a new boundary to replace theevent horizon - an apparent horizon that fluctuates with quantumeffects.There are no black holes, the pre-print paper concludes, inthe sense of regimes from which light cant escape toinfinity.
The response from other physicists has been cautious however.Raphael Bousso, a theoretical physicist at Berkeley, told Nature News The idea that there are no pointsfrom which you cannot escape a black hole is in some ways an evenmore radical and problatic suggestion than the existence offirewalls.