[galaxyLogic]

If I understand this correctly the db would be on the client/browser. Thus any persistence would happen via local storage or such. But:

1. People often reset the cache on their browser, after all it is just a cache. SO a big benefit of databases which is persistent data is kind of not there. Juts rest your cache.

2. The second great benefit of databases is that they are multi-user. There can be in fact millions of users. But this benefit would not be there if the database lives and executes in the browser.