The limits of timing
Knowing a transit is not knowing what will happen.
A transit gives you the THEME, not the event. "Saturn is crossing your tenth house" means a period of weight and responsibility around career. That could be a promotion, a resignation, or two quiet years of work.
What nobody can say
This is why nobody can say "you will lose your job on Tuesday". If someone does, they are not doing astrology.
We are back to the sentence from the first lesson: a chart is a mirror, not a calendar. That is where this chapter closes.