Oh ok. Childhood memory unlocked.
When i was a little kid, i had a "4d puzzle" of new york city.
You built the cardboard jigsaw base, then the foam island, and then you had plastic buildings and bridges.
And it had instructions to place the buildings in chronological order, as well as a timeline, hence "4d".
And i just fucking remembered. In 2001 on the timeline a step was "remove buildings #xx and #xy (World Trade Centers)" with no other explanation.
And as a kid i had no clue what that meant, but looking back on it my puzzle really just told me "alright kid, do a 9/11" and i, age 5, went along with it.
