" Sometimes it's more art than science because some of it is very hard to test... " or keep stable conditions / or normalise many changing values (including this growing around or people's change thoughts growing / changnig)

https://invidious.snopyta.org/watch?v=jEVG21NHboo&t=9m47s
or
https://redirect.invidious.io/watch?v=fVhBOcUv4QY&t=9m47s

#gardening #growing #mind #matter #nature #free #food #experiment