A Theory and a Revelation

This morning I had a theory and a revelation about Lost. REVELATION: Even though there are no more flashbacks/flash forwards anymore, there are (bear with me.) When the Left Behinders are moving through time, they are flashing back and forward. So although there weren't any flashbacks to 1954, they literally flashed back to that year. THEORY: There are five people/groups who have crashed on the island. We have only seen four.

1. Oceanic 815 Crash (Pilot; A Tale of Two Cities)
2. Desmond's Crash (Live Together, Die Alone)
3. The Nigerian Beechcraft (Because You Left)
4. The French Team Crash (The Little Prince)

The only other crash that we have not seen is Henry Gale (and possibly wife)'s crash in their hot-air ballon. This was a plot point in Season 2 to introduce Ben, but hasn't been seen since. While the Left Behinders are flashing through time, will they see Gale's balloon crash? It's just a thought.