41.   As a result, many London art experts believe that the Spiral is too ambitious.

42.   At least, that is what many experts have always believed.

43.   At least one expert believes NASA must improve the way it conducts its low-cost missions if it wishes to continue its studies of Mars.

44.   Aviation experts believe that it is a significant factor in many airplane accidents.

45.   Baseball has not banned andro, many experts believe, because it would cast a pall on the home-run record.

46.   Because so much ash fell, it is common to think of the victims as having suffocated, and experts believe that happened to many of them.

47.   Because world equities have turned out to be more highly correlated in bear markets than experts had believed, internationally diversified portfolios have been far more volatile than predicted.

48.   Believed by experts to be genetically linked, autism creates extreme socialization problems and limits emotional development.

49.   Both fears may prove true over time, though many experts believe that is not necessarily bad.

50.   A few experts do believe that a reckoning is inevitable and that Amreicans are woefully unprepared.