I confess. I literally had no idea what you were intending to convey with those two sentences so I restated alternatively what I intended to convey in the hope it might make clear my position (if that was an issue for you) or that I might learn more from your response.
> Where do you think you're contradicting me?
That's not a thought that I thunk.
Therefore I have no response.
> But the plane is not located at any point in the 4-dimensional space
Every point along the 4D path trajectory of the plane in {X,Y,Z,T} is a literal {X,Y,Z} location of that plane at time T.
> Both of those things are required before you can describe the plane as "moving" within the space.
I certainly did not describe the plane as "moving" within R^4.
> There is no secret backup time that will allow you to track the plane's hypothetical motion along an explicit time dimension.
I utterly fail to understand what you intend to convey here.
Although I note that the actual (not hypothetical) velocity of the plane projected onto the time axis is very likely to be on the order of approximately one second per second.
I confess. I literally had no idea what you were intending to convey with those two sentences so I restated alternatively what I intended to convey in the hope it might make clear my position (if that was an issue for you) or that I might learn more from your response.
> Where do you think you're contradicting me?
That's not a thought that I thunk. Therefore I have no response.
> But the plane is not located at any point in the 4-dimensional space
Every point along the 4D path trajectory of the plane in {X,Y,Z,T} is a literal {X,Y,Z} location of that plane at time T.
> Both of those things are required before you can describe the plane as "moving" within the space.
I certainly did not describe the plane as "moving" within R^4.
> There is no secret backup time that will allow you to track the plane's hypothetical motion along an explicit time dimension.
I utterly fail to understand what you intend to convey here.
Although I note that the actual (not hypothetical) velocity of the plane projected onto the time axis is very likely to be on the order of approximately one second per second.