On Sep 26, 11:58 am, Miguel wrote:

I agree the World Championship must be normally decided in a match,
but don't forget Botvinnik got his title in a tournament like this
one; so this title isn't less valid.

True, but that was only because the incumbent champion Alekhine died
while still holding the title. Hague-Moscow 1948 does not apply as a
precedent for Mexico City 2007 or any of the FIDE "world
championships" of the past 10-15 years.