October 24, 2017
12:00PM ET
![Chart with Days 4-8](https://olsume.org/wp-content/uploads/2020/12/2017-10-24.png)
February 6, 2018
12:00PM ET
![Dev Sinha](https://olsume.org/wp-content/uploads/2020/12/2018-02-06.jpg)
September 24, 2019
12:00PM ET
![People Working at a table](https://olsume.org/wp-content/uploads/2020/12/2019-09-24.jpg)
October 27, 2020
12:00PM ET
![Woman at a computer](https://olsume.org/wp-content/uploads/2020/10/2020-10-27.png)
- Jason Martin (University of Central Arkansas)
- Michael Tallman (Oklahoma State)
- Matt Thomas (Ithaca College)
- Aaron Weinberg (Ithaca College)
November 10, 2020
12:00PM ET
![Uri Treisman and Erica Winterer](https://olsume.org/wp-content/uploads/2020/11/2020-11-10-3.jpg)
- Uri Treisman (University of Texas at Austin)
- Erica Winterer (University of Texas at Austin)
November 23, 2021
12:00PM ET
![](https://olsume.org/wp-content/uploads/2021/11/tchertchian.jpg)
- Edouard Tchertchian (Pierce College)
October 11, 2022
12:00PM ET
![](https://olsume.org/wp-content/uploads/2022/09/Hortensia-Soto.jpg)
- Hortensia Soto (Colorado State University)
April 2, 2024
12:00PM ET
![](https://olsume.org/wp-content/uploads/2024/03/doree.png)
- Su Dorée (Augsburg University)
- Jennifer Quinn (University of Washington, Tacoma)