Take a look at this ECG. Approach it systematically. What do you see?
![](https://pbs.twimg.com/media/EdCdcpWXYAAIjj_.jpg)
You can also see the post and more on our website: coreimpodcast.com/2020/07/16/cov…
Finally, time for some credits: @KelseyGrossman authored this thread and @gregorykatz peer reviewed it.