What if the fall of Rome in the West had gone differently?

The last western emperor is deposed; Roman Europe fragments into successor kingdoms.

If it had gone differently: The Western Empire holds together; there are no barbarian kingdoms, no feudalism, no medieval Europe as we know it.

1. 1096The Crusades, Western Europe stays inward-looking; the appetite for spices and silk that will send ships around Africa never develops.
2. 1150The first universities, Learning stays locked in monasteries; there is no scholarly institution for the Scientific Revolution to grow out of.