Mastery card
I can explain Sunk Cost
Money or time already spent that you can't get back - don't let it boss the future.
A sunk cost is a cost you've already incurred and cannot recover. Good decisions ignore sunk costs and compare only future costs and benefits.
Sticky trick
SUNK = it's under the water - you can't fish that coin back.
Take into the room
A sunk cost should…
Or open the share card ⚓
Or start your own 5-word trail from home.