Just someone undergoing a little mid-life career redirection... by going back to school and getting a CS PhD at age 40.
Role-playing Games
Q&A for gamemasters and players of tabletop, paper-and-pencil role-playing games
Stack Overflow
Q&A for professional and enthusiast programmers
Academia
Q&A for academics and those enrolled in higher education
Science Fiction & Fantasy
Q&A for science fiction and fantasy enthusiasts
Home Improvement
Q&A for contractors and serious DIYers
Cross Validated
Q&A for people interested in statistics, machine learning, data analysis, data mining, and data visualization
Theoretical Computer Science
Q&A for theoretical computer scientists and researchers in related fields
Computer Science
Q&A for students, researchers and practitioners of computer science
Ask Ubuntu
Q&A for Ubuntu users and developers
Mathematics
Q&A for people studying math at any level and professionals in related fields
Seasoned Advice
Q&A for professional and amateur chefs
Signal Processing
Q&A for practitioners of the art and science of signal, image and video processing
Artificial Intelligence
Q&A for people interested in conceptual questions about life and challenges in a world where "cognitive" functions can be mimicked in purely digital environment
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Personal Finance & Money
Q&A for people who want to be financially literate
Super User
Q&A for computer enthusiasts and power users
Motor Vehicle Maintenance & Repair
Q&A for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles
Software Recommendations
Q&A for people seeking specific software recommendations
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Worldbuilding
Q&A for writers/artists using science, geography and culture to construct imaginary worlds and settings
Network Engineering
Q&A for network engineers
Photography
Q&A for professional, enthusiast and amateur photographers
Politics
Q&A for people interested in governments, policies, and political processes
Web Applications
Q&A for power users of web applications
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
GenAI
Q&A for GenAI enthusiasts and practitioners and those interested in learning more about using GenAI tools