{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"The Eric Normand Podcast","title":"What is an inverse, and why is it useful?","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/866a64db\"></iframe>","width":"100%","height":180,"duration":474,"description":"Inverses are everywhere. They let us undo an action. For instance, I can open a door and close it. Why do we want to do this? Because there are things I can do with the door open, and other things I can do with it closed. We need this same flexibility in our computer programs.","thumbnail_url":"https://img.transistorcdn.com/WbyB3L00271RX0nwX_O6wfvG-9-GVuhuQNa4JxI1IvI/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9zaG93/LzQzMzgvMTU2ODQ4/NjQ0MC1hcnR3b3Jr/LmpwZw.webp","thumbnail_width":300,"thumbnail_height":300}