Is there a limit to the content in a category?

I’ve recently discovered the hard way (twice through crashes on the pages/tabs!) that WordPress apparently has a limit of about 300 links to a single page. Does that limit also apply to categories? I’m a book reviewer with over 600 reviews, the first paragraphs of which are excerpts. All these are now in a single category called All Authors and Titles, my default category. (They also appear in separate categories in the right-side sidebar, though not as subcategories of the default–All Authors and Titles.) Do I have to worry that I will suddenly get the dreaded blank page for this category because I have too much content on it, as I did, twice, for my pages that listed authors and books as tabs at the top of the page? Thanks VERY much in advance.