Apparently, according to on of the sources, there was evidence of this feature in late 2015 where it was originally designed to be shown as double-arrow buttons. But it was removed and it was not available to every user. Only, recently had it been release to every platform.
In my opinion, this feature really helps navigation in the videos, since I often watch videos and i often impatiently skip the parts i don't find interesting. With the double tap in effect, I dont have to scroll manually with my finger and be afraid that i scrolled to far or not far enough. Also because it is only 10 seconds, I feel like it is a very appropriate length to skip by for the average youtube video which is often 10-20 minutes long. However, according to some sources, there are a certain amount of users who found it annoying, reporting that it slowed down the interface and made it difficult to go in and out of full screen mode.
As i mentioned earlier, i really do like this add on, however i do think that there is this slight limitations in which it is only usable when the video is on full screen mode. However it is not a big deal because not many people watch videos not on fullscreen especially on their smart phones. This could possibly prevent people from accidentally fast forwarding the video or rewinding it instead of going to the next video on the playlist.
In conclusion, as a frequent user of the Youtube app on the smart phone. I really rate this new add on. It did very much improve the convenience of navigating through the videos. Being slight impatient, this add on had been very useful to me. Hopefully, this function could be added on to different video players as well in the near future.
Bibliography:
- http://www.androidpolice.com/2017/02/06/youtube-officially-enables-double-tap-gesture-to-jump-10-seconds-forward-or-backward/
- https://thenextweb.com/google/2017/02/03/youtube-fast-forward-backward-double-tap/#.tnw_Q4uY9Oh9
- http://www.techtimes.com/articles/195905/20170203/youtube-rolls-out-double-tap-function-fast-forward-rewind-videos.htm
- https://www.xda-developers.com/psa-double-tap-to-fast-forward-rolling-out-to-youtube-app-on-android/