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Yo, I’m Eric, aka Reysu!
I run a 200k subscriber youtube channel where I talk about productivity, tech, and tools to optimize your life.
I built the Life Tracker System, a paper-and-pen framework for logging habits, daily highlights, and small experiments that thousands of viewers now use.
Whether you’re a fellow entrepreneur, student, or company that wants to work together, feel free to say hi! let’s connect!
A notebook to save you from infinite scrolling
A notebook to save you from infinite scrolling
4.5M views
Jan 18, 2024
how I reduced my screentime by 80% (guide)
how I reduced my screentime by 80% (guide)
1.8M Views
Jun 7, 2024
I Tried Biohacker’s $2,000,000 Routine to Reverse Aging/w=1920,quality=90,fit=scale-down)
I Tried Biohacker’s $2,000,000 Routine to Reverse Aging
1.1m views
Feb 23, 2023
How I Learned Fluent Japanese In One Year
How I Learned Fluent Japanese In One Year
378K views
Oct 8, 2022
9 niche tech products that improved my life
9 niche tech products that improved my life
817K views
Nov 29, 2024
my two notebook system to stop infinite scrolling
my two notebook system to stop infinite scrolling
175K views
April 26, 2025
Blog posts
student for life
09/06/2025
automate your deepwork
productivity
lightphone customization guide
03/05/2025
i tried being a ‘digital nomad’ for 3 months
27/03/2025
how to make your smartphone into a dumb phone
07/06/2024
guides
Be humble
03/12/2024
ideas
how running changed my life
27/05/2024
fitness
6 lessons after making 100+ videos
26/03/2024
youtube
i stopped managing my time after this
16/03/2024
productivity