Really Quick Fast Casting Questions (like lightning)

[Erik_Tyrrell]

Context from page 174 isn't crystal clear but I think it supports the 1 spell per round (unless you are doing multiple fast castings) interpretation.

It takes approximately one combat round to cast a spell unless it is fast cast. Thus, a magus can not cast more than one normal spell, or a fast cast and a normal spell in the same round. A very fast magus may be able to cast more than one fast cast spell, but this is beyond most magi.

If a fast cast and a normal is easily done by most magi why is two fast cast spells so difficult?

If a normal spell takes a whole round, how is there time for a fast cast?