When opening the photo gallery on a smartphone, images display in the order of their capture dates. The collection starts with the oldest photos and progresses chronologically to the newest ones.
Each visit to the gallery maintains this sequence. Scrolling reveals a continuous timeline, with photos from successive days following one another seamlessly.
At some point, while reviewing the collection, images appear clustered by shared characteristics, such as people or places, instead of dates.
The date-based sequence has vanished. Photos captured on different days now adjoin when they contain similar subjects.
The gallery now organizes its images through content-based grouping, without any indication of the prior arrangement's departure.