That sounds like the title of a very enticing, but also very common, "get-rich-quick" scheme video or article.

It is important to be highly skeptical of any claim that you can "make a fortune" simply by passively watching YouTube videos for a short period of time like 30 days.

Here is a breakdown of why these claims are usually misleading, and the actual, legitimate ways people make money on the platform:

1. The Reality of "Watching Videos for Money"

    GPT Sites (Get-Paid-To): There are legitimate (but low-paying) platforms like TimeBucks or other survey/task sites that will pay you a few cents to watch short video advertisements. However, the pay is extremely minimal. You would spend countless hours for a few dollars, not a "fortune." Any site promising to make you rich this way is a major red flag for a scam.

    Common Scams: Scammers frequently use the promise of "watching videos for high pay" to lure victims. This often leads to requests for an upfront payment to "release your earnings," or a pyramid-like scheme where you are asked to "invest" your own money to continue receiving "tasks." These are typically fraudulent and you will lose your money.

2. The Legitimate Way to Make a Fortune on YouTube

The fortune is made by creating valuable content, not just consuming it. The people behind a video with a title like that are the ones making the money.
Income Stream   How It Works   The "30 Days" Reality
Ad Revenue (YouTube Partner Program)   YouTube shares a portion of ad revenue with creators who meet minimum requirements (e.g., 1,000 subscribers and 4,000 watch hours).   It takes months or even years of consistent, high-quality content creation just to qualify for this. A fortune in 30 days is extremely rare and unrealistic.
Affiliate Marketing   The creator includes links in their video description to products/services and earns a commission on any sales made through that link.   This requires a large, engaged audience that trusts the creator's recommendations, which takes time to build.
Selling Digital Products   The creator sells their own courses, templates, e-books, or merchandise (often featured prominently in their videos).   This is where the real money is made, but it requires months of work to create the product and build the audience to sell it to.
Sponsorships   Brands pay the creator to feature their product or service in a dedicated portion of the video.   Only available to channels with a substantial audience and high engagement rates.

Conclusion: What the Video is Likely About

The video you are referring to is most likely one of two things:

    A Promotional Strategy: The creator is showing their own high earnings from creating their YouTube content (after years of work) or from an online business they're now promoting, using the clickbait title to attract views.

    A Business Model: They are showing how they "made a fortune" by creating a faceless YouTube channel that curates and edits public domain, stock, or licensed videos (like compilations, relaxing music, or informational videos) and then monetized it through the YouTube Partner Program. Even this is a lot of work and very rarely happens in only 30 days.

To be safe, do not provide any personal information or money to any service claiming you can make a large amount of cash simply by watching videos.