Below are the questions covered in today's episode (with their timestamps). For instructions on submitting your own questions, go to calnewport.com/podcast).Video from today’s episode: youtube.com/calnewportmedia)CAL REACTS TO THE NEWS : Elon Joins the Twitter Board [1:32]QUESTIONS:- Managing idea notebooks [24:19]- Doctor who wants to learn advanced math [29:56]- Obsessed with instant messaging [34:17]- Tempering a racing mind [47:35]- Selecting good keystone habits [54:50]Thanks to our Sponsors:MyBodyTutor.com)ExpressVPN.com/Deep)Workable.com/Podcast)Grammarly.com/Deep)Thanks to Jesse Miller for production, Jay Kerstens for the intro music, and Mark Miles for mastering.