What would the 12th century and beyond have looked like for the Byzantines without the Crusades?

Futurist

Ad Honoris
May 2014
23,783
SoCal
If, for whatever reason, the First Crusade would have failed to materialize, what would the 12th century and beyond would have looked like for the Byzantines?

FTR, here is a map of the Byzantine Empire in 1095:



The Byzantines were in much better shape in the early 11th century:



It was the 1071 Battle of Manzikert and its aftermath that hurt the Byzantines--with them losing almost all of Anatolia in the subsequent 25 years. Of course, the Byzantines also got completely kicked out of Italy in 1071.