Mental Models · Card 3

Opportunity Cost

Every rupee spent on one thing is a rupee that can no longer grow somewhere else — the real cost of a choice is the next-best thing you gave up.

This ₹10,000

SIP

Emergency Fund

This Purchase

Choosing one closes the others.

In Practice

₹10,000 spent on a gadget today is ₹10,000 that will never sit in a SIP compounding for the next twenty years.

Generic Example

An hour spent scrolling is an hour that could have gone toward the one skill you keep meaning to learn.

If I say yes to this, what am I quietly saying no to?