The Clever Lab · America's Future 80th Anniversary

Opportunity Cost

See what spending today really costs you tomorrow. A purchase's true cost is what that money would have grown into.

Cadence

$50 invested for 20 years becomes

$193

"It's only $50" is really $193 in 20 years.

$50.00
You put in
$143
Growth forgone
3.87×
Multiple
■ what you put in■ growth forgone

Growth over time

year 0value ▲ · put-in ┄year 20
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Try an everyday purchase

Plain math — nothing hidden

opportunity-cost.calc
$ compute --explain
cadence   = one-time
principal = $50
rate r    = 7% = 0.07
years t   = 20
formula   = P · (1 + r)^t
future_v  = $50 × (1 + 0.07)^20 = $193
growth    = $193 − $50 = $143
multiple  = 3.87×
status: ok · runs locally · nothing stored

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