User could follow someone else's made trail, such as reading this wiki, instead of researching everything themselves. Uncommon problems, and the exploration inherent in science, require custom data sources that have not been documented here. Many of the issues described on this page, data access<ref>https://quantifiedself.com/about/access/</ref>, data quality (devices often cover up bad signal with guesswork), and price are all constraints which make finding a good enough device harder. Greed motivates many companies to make fake and useless devices and interventions. | User could follow someone else's made trail, such as reading this wiki, instead of researching everything themselves. Uncommon problems, and the exploration inherent in science, require custom data sources that have not been documented here. Many of the issues described on this page, data access<ref>https://quantifiedself.com/about/access/</ref>, data quality (devices often cover up bad signal with guesswork), and price are all constraints which make finding a good enough device harder. Greed motivates many companies to make fake and useless devices and interventions. |