An ad-blocker app that mutes and darkens the screen during video ads. The ad is replaced by a time-to-resume counter or custom content like random quotes, beautiful screensavers, etc. The app is for phones and smart TVs.
Advertisers shouldn't get to occupy your thoughts/memory without your consent.
While being focused on what you were watching an abrupt shift to nonsense is annoying at best and a waste of brainpower/memory at worst.
You install the video-ad-blocker app on your phone and/or smart TV. The app runs in the background.
Youtube can't see whether you have the app installed so that they don't develop countermeasures.
When an advertisement comes up during a Youtube video (or a TV show), the screen is darkened and the sound is muted for the duration of the advertisement block.
There is a counter displayed on the screen, counting down the remaining seconds until the ad block is over and what you were watching resumes. If the time-to-resume is not known, there is just a rotating icon and a message "the video will resume after ads.
You can opt to have random quotes displayed to keep you entertained while you wait.
On TV the ad blocks are longer in duration. It would make sense to have an alarm/beep notification to alert you when the ads are over.
An opportunity to regain your freedom
Optionally, the ad blocking app could suggest during ads that you try to break free from the underlying video altogether. Maybe you didn't indend to watch it in the first place. Maybe it's not that interesting. There is your chance to leave and do something better with your time.