Many more related techniques in this book: https://www.goodreads.com/book/show/1... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

kranner on Jan 29, 2017 | parent | context | favorite | on: Box Breathing

Many more related techniques in this book: https://www.goodreads.com/book/show/188192.Light_on_Pr_n_y_m...

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact