## Overview

**Introduction**

The Multiplicities of Math

*by Jesse Emspak*

**Section 1: Big Questions**

1.1. The Top Unsolved Questions in Mathematics Remain Mostly Mysterious

* by Rachel Crowell*

1.2 A Random Walk through the English Language

*by Jordan Ellenberg*

1.3 Hilbert Walked so the Clay Mathematics Institute Could Run

*by Evelyn Lamb*

1.4 Numbers Game

*by Kelsey Houston-Edwards*

1.5 Is Mathematics, like Science, Pluralistic?

*by John Horgan*

1.6 New Proof Solves 80-Year-Old Irrational Number Problem

*by Leila Sloman*

1.7 The Three-Body Problem

*by Richard Montgomery*

1.8 The Un(solv)able Problem

*by Toby S. Cubitt, David Pérez-García & Michael Wolf*

**Section 2: Measurements and Analysis**

2.1 Confronting Unknowns

*by Jessica Hullman*

2.2 The Significant Problem of P Values

*by Lydia Denworth*

2.3 How Small is Small?

*by Naomi Oreskes*

2.4 Computation in Service of Poetry

*by Evelyn Lamb*

2.5 Farewell to the Fractional Foot

*by Evelyn Lamb*

**Section 3: Society, Politics and Economics**

3.1 Can an Algorithm Help Solve Political Paralysis?

*by Julia Hotz*

3.2 Smartphone Data Show Voters in Black Neighborhoods Wait Longer

*by Daniel Garisto*

3.3 Geometry versus Gerrymandering

*by Moon Duchin*

3.4 Ask Gini: How to Measure Inequality

*by Evelyn Lamb*

3.5 The American Economy Is Rigged

*by Joseph E. Stiglitz*

3.6 Is Inequality Inevitable?

*by Bruce Boghosian*

**Section 4: Your Health by the Numbers**

4.1 False Positive Alarm

*by Sarah Lewin Fraser*

4.2 The Heisenberg Uncertainty Principle of Social Science Modeling

*by Ben Klemens*

4.3 Geometry Points to Coronavirus Drug Target Candidates

*by Michael Dhar*

4.4 Few Would Fear COVID Vaccines if Policy Makers Explained Their Risks Better

*by Claudia Wallis*

4.5 When Assessing Novel Risks, Facts Are Not Enough

*by Baruch Fischhoff*

**Section 5: Math Drives Technology**

5.1 The Mathematics of (Hacking) Passwords

*by Jean-Paul Delahaye*

5.2 Why History Should Matter to Code Breakers

*by Craig P. Bauer*

5.3 Color-Changing Fibers Unravel a Knotty Mystery

*by Jeremy Hsu*

5.4 Algorithm Aids Search for Those Lost at Sea

*by Scott Hershberger*

5.5 Math Can Help Build a Global Digital Community

*by Cindy Lawrence*

5.6 The Math of Making Connections

*by Kelsey Houston-Edwards*

**Section 6: Math 101: Education and Learning**

6.1 Why Math Education in the U.S. Doesn't Add Up

*by Jo Baoler & Pablo Zoido*

6.2 Teaching the Controversy: Is 5 × 3 Five 3s or Three 5s?

*by Evelyn Lamb*

6.3 The Surprising Link between Recreational Math and Undecidability

*by Evelyn Lamb*

6.4 The Mathematical Phrase that Melts My Brain

*by Evelyn Lamb*

6.5 Learning on the Back of an Envelope

*by Amanda Baker*

6.6 Fractions: Where It All Goes Wrong

*by Robert S. Siegler*

6.7 The Only Way to Win Is Not to Play the Game

*by Evelyn Lamb*

**Section 7: Pop Culture Math**

7.1 For Math Fans: A Hitchhiker’s Guide to the Number 42

*by Jean-Paul Delahaye*

7.2 What Is the Funniest Number?

* by Evelyn Lamb*