Added a couple of sentences to highlight the power of #hashtags. Hashtags are a great tool to find topics of interest and increase discoverability of your notes. 
nostr:note1jr8tswesd5l5ckpclhc94wy9jrvmag2jmk2fll88pl879tysvzns8q8acq
Discussion
nostr:note185xpvaxm9afd8cy57jfxz4cfy35k7dgx02c3ej6grtf8t4m269wq8dtwq2 #grownostr
Nostrgraph did something like that
This is a screenshot from https://nostrgraph.net/
nostrgraph.net/dashboard
Hi tony... currently working on an information system called HASH-CATS. combining hash-tags with categorical sorting structure like in a newspaper. One one hand, the category or categories are inherent, to meta refine the subject matter. then hash-tags are used to imply keywords or further descriptive data to refine the context of the overall category.