Inflation — Purchasing Power Over Time

Description

Illustrates how inflation erodes purchasing power over time through multiple visual metaphors: a shrinking coin, a bar chart showing how many goods $100 buys across decades, the rising CPI index, and the Rule of 72 applied to purchasing power halving at 3% annual inflation (~24 years).

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Phases

#	Phase Name	Duration	Description
1	Title & Hook	5s	Title appears, brief explanation of inflation concept
2	Shrinking Coin	8s	A coin (circle with $ symbol) visibly shrinks to represent eroding real value
3	Bar Chart	10s	Bar chart: goods purchasable with $100 in 1970, 1990, 2010, 2024 — bars decrease
4	CPI Index	8s	Line plot of the Consumer Price Index rising from 1970 to 2024
5	Formula	5s	Display Real Value = Nominal Value / Price Index formula
6	Rule of 72	8s	At 3% inflation, purchasing power halves in 72/3 = 24 years. Visual demonstration.

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Layout

+-----------------------------------------------+
|       Inflation — Purchasing Power Over Time   |
|                                                |
|  [Coin shrinks]     [Bar chart: goods per $100]|
|                      1970: ████████████ 100    |
|                      1990: ████████     70     |
|                      2010: ████         40     |
|                      2024: ██           20     |
|                                                |
|  CPI: ^                              _______/  |
|       |                         ___/           |
|       |                    ___/                |
|       +--1970--1990--2010--2024-->              |
|                                                |
|  Real Value = Nominal / Price Index            |
+-----------------------------------------------+

Area Descriptions

• Top: Title
• Left-center: Animated shrinking coin phase
• Right-center: Bar chart showing declining purchasing power
• Lower-center: CPI line chart
• Bottom: Formula and Rule of 72 text

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Assets & Dependencies

• Fonts: LaTeX / sans-serif
• Manim version: ManimCE 0.19.1

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Notes

• Coin: gold circle with dollar sign, shrinks via animate.scale()
• Bars: orange/red tones, decreasing in height
• CPI line: blue, rising
• Background: dark navy #1a1a2e
• Rule of 72 text uses MathTex