We spent quite a bit of time this term learning about deductions. One of the important distinctions between various types of deductions that we examined was the distinction between "for AGI" and "from AGI" deductions. Explain how the names for these two types of deductions developed, as well as the fundamental differences between the two types of deductions and the general types of deductions that fall within each category. In particular, focus on the different tax consequences that each might have, any applicable limitations, and the significance of being classified as a from AGI deduction instead of for AGI.