Is the Authority of Individual Pages Diluted When You Add New Pages?

[Charlessipe]

I was wondering if the authority of individual pages is diluted when you add new pages (in Google's view). Suppose your site had 100 pages and you added 100 new pages (without getting any new links). Would the average authority of the original pages significantly decrease and result in a drop in search traffic to the original pages?

Do you worry that adding more pages will hurt pages that were previously published?

[redfishking]

Well, with more pages you will have more opportunities to go after different keywords and offer new original content. As long as the content isn't duplicate or spammy, I can't imagine you would be hurt for simply expanding your website. Even if you added a bunch of internal links to your new pages, as long as your pages still look natural it shouldn't be a problem.

[Francisco_Meza]

I wouldn't worry about adding 100 new pages. Go for it. You also have to think about the opportunity cost of not creating the additional 100 pages. You will probably be missing out on something. With that said, make sure that you are creating high quality pages because it helps your domain overall. And remember this is for the long-term. Whenever I launch a new page, it gets to the 2nd page fast. Within the next 6 months to 1 year it's normally on the 1st page.

[Doc_Sheldon]

Charles, I wouldn't be too concerned about this. Assuming you're adding pages with quality content, the value they add to the site should outweigh any dilution effect, if any exists. To be a little safer, though, rather than adding 100 pages to a 100 page site in one go, can you phase them in gradually? That big a jump all at once could conceivably cause a temporary drop of the existing pages, I suppose, although I would expect any drop to be short term, with an overall gain once the new pages are picked up.

[EastEssence22]

Authority or No of pages or all other factors are secondary.
What is more important is assessment of our goals.
Why do our website exist?
How rich content we are building? Are we sounding like subject matter expert?
Answers for these questions are more important than one page or many page? 
Page rank, Page authority, Domain Authority these all are metrics as far as we are thinking about google ranking.
Ultimately one page or many pages we are building website for human being.
First purpose and then analysis. Reverse is not possible.

SAMEER