It's nice for someone to actually say so, thanks. I'm getting tired of all the reflexive, unexplained downvotes. HN is an unfriendly and cold place, these days.
Meanwhile, sure, it's easy to understand that Inception is a cake. I'll concede that. But: it's not so easy to frost all three layers of the cake at the same time. The part where Inception gets tricky for me is where they start intercutting from layer to layer, and taking actions on one layer that have ramifications on the others.