"**Fuller House's Handling of Michelle's Absence**"

During its first few seasons, Fuller House referenced Michelle Tanner from time to time. But, as the show went on, and it became clear that Mary-Kate and Ashley were set on not revisiting the role, the show also gradually stopped mentioning her.

The most interesting reference to the character, however, was an indirect one. In Fuller House season 5, episode 1 Danny (Bob Saget) made a statement saying: “it’s so nice to have three daughters again” while talking to DJ, Stephanie, and Kimmy, implying that Kimmy had taken Michelle's spot in the family. There was never any clarification about this, but a separate theory builds on the idea.

"**Fuller House's Dark Theory: Michelle's Untimely Demise**"

The theory claims that Michelle didn't actually get the chance to grow up because she died in the Full House finale, as opposed to just dying recently. In the original show's final arc, Michelle suffered a head injury when she fell off her horse. It resulted in her amnesia, and the rest of the series' run revolved around the Tanners trying to make her remember. In the end, however, she did seem to recover. The theory suggests that Michelle Tanner didn't actually get better.

"**The Impact of the Dark Theory on the Show's Narrative**"

The idea is that she died due to the head trauma she suffered. The rest of Full House, therefore, was the family reminiscing on their time together as a way of coping. Decades later in Fuller House, the Tanners still liked to pretend that Michelle was still alive and that the only reason she couldn't be with them was that she relocated across the country.

Danny's Michelle tease in the Fuller House final season makes sense under this interpretation of events, as this would explain why Michelle wasn't considered in the "three daughters" statement.

Admittedly, this is quite a dark plot line for a primarily lighthearted sitcom like Full House and Fuller House. But, it also offers a robust reason why the youngest Tanner daughter never came home despite the many family gatherings they had over the years. For someone who valued the importance of being there for family, this didn't make sense unless it was physically impossible for her to return.

"**The Fuller House Stars' Perspective on Michelle's Absence**"

When Fuller House first started up, Michelle Tanner's absence was the source of some drama, but the explanation for why she didn't return is pretty simple. Mary-Kate and Ashley Olsen haven't acted for years and are instead fully invested in the fashion industry, where they run multiple clothing brands. John Stamos has said that the Olsen twins' Fuller House absence was blown way out of proportion and that it was perfectly logical that they didn't want to reprise their roles given their other obligations and accomplishments.

The twins themselves have stated that they now prefer to be out of the spotlight, which is also understandable.

"**The Unaddressed Theory's Impact on Fans and the Show's Future**"

With Fuller House finished, there's no way to address the disturbing Full House theory that Michelle actually died — at least for now. But if anything, it demonstrates the extent of fans' disappointment about the Michelle-shaped hole in the Netflix spin-off.

However, it's unlikely that this theory will ever be officially addressed either in the show or by its creators in light of its decidedly grim nature.