# Some macro inventions require out of system knowledge <!-- #evergreen #inbox --> [Web URL for this note](http://notes.benjaminreinhardt.com/Some+macro+inventions+require+out+of+system+knowledge) [Comment on this note](http://via.hypothes.is/http://notes.benjaminreinhardt.com/Some+macro+inventions+require+out+of+system+knowledge) <!-- {BearID:CC3A576D-E2AF-4BA0-842C-3548917F36E3-19569-0003CC7C2FC87AF8} -->