How to pronounce "Thesa"
Use 'tes-a', the 'h' is silent. "Thesa" is the first five letters of "thesaurus."
How large is Thesa
Thesa contains 13,000 quotations from 2,800 references sorted into 1,200 topics.
Why are URLs numeric?
The URLs are the permanent IDs for each item in Thesa (e.g., 'thid-1468-5009-th-1114-0561'). It consists of a depot (e.g., 'ThesaHelp:' at 'thid-1468-5009') and an item within that depot (e.g., this page at 'th-1114-0561').
Permanent, numeric URLs allows the title of an item to change without changing its identity. This allows the title to remain descriptive despite changes to the item itself.
The name space is flat and non-hierarchical. Numeric IDs identify items, while titles describe items. All organization is moved from the name space into the items' links. Think of picking up an item, and thereby picking up its related items.