Max Wallis asked this question about
Paradox: The Nine Greatest Enigmas in Physics:
The blurb talks of the 9 greatest paradoxes in physics. It should therefore cover the black-hole 'Event Horizon'. That a particle of matter takes infinite time to transit this horizon prevents Black Holes growing by feeding from our universe. At least, not within the lifetime of our universe. Why did Al-Khalili omit this greatest paradox?
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