Which free AI tool impressed you the most recently?

>I'm trying to optimize my study workflow for next semester and want to expand beyond just standard ChatGPT. I recently tried NotebookLM for turning my messy lecture PDFs into instant podcasts and study guides, and it completely blew me away. What free AI tools or hidden features have you guys found recently that actually save you time instead of just hallucinating info? Looking for anything from citation builders and PDF analyzers to math solvers.

reddit.com
u/Appropriate_Bird1981 — 12 hours ago
▲ 67 r/PhD

How many hours a week do you honestly work, and how do you prevent guilt on your days off?

Hey everyone,I constantly feel a nagging sense of guilt whenever I am not actively working on my dissertation or research. Even when I take a Sunday off, I can't fully relax because I'm thinking about everything sitting on my desk.I'm trying to treat this like a standard job to protect my mental health, but the academic culture makes it feel like you should be working 24/7.Honestly speaking, how many focused hours a week do you actually put in? And what boundaries have you set to completely switch off your "PhD brain" during weekends without feeling guilty?

reddit.com
u/Appropriate_Bird1981 — 13 hours ago