About Fate points ( pentaclass )

[le Redoutable]

What if, Fate points let you change your potential , like
You have 5 classes, each ranging 1 to 10, while your Global level might not exceed 42;
So you could have a set of
10+10+10+10+2 as potential,
That you could change ( using one Fate point.) to
8+7+9+10+8
etc

 

[le Redoutable]

And when you run out of Fate points , then
" Your fate is sealed ! "

 

[le Redoutable]

Then, can't you spend one Fate point to actually alter reality ( as per the 7th level 1st ed Illusionist spell ) ?