Luke

I'm aware of the different theories. I'm not keen on committing to the objective present moment of the Moving Spotlight Theory,

I'm not against the growing block theory, per se, but I don't necessarily consider it to be the view that I hold. As I explained previously in the dis...

We were discussing time travel. The question posed by the OP is: is time travel to the past hypothetically possible? I'm sure you've heard of time tra...

I'm reasonably sure General Relativity is a theory, not a fact. It might seem nonsense if you adopt an eternalist view of time, but that's not a fact ...

If Alice0 is the original, then how is she able to see Alice1 driving off on the other side of the tracks as you claim? I thought that the car on the ...

Your examples of the scenario were: The problem is that you provided very little detail so it is difficult to follow what is happening in this scenari...

She simply decides not to hit the button again. You didn't provide any information in your scenario about why she time travels. Presumably she does it...

What I said is that I fail to see how it ends the timeline. You seem to refuse to comment on that. Your examples show only that my concept of time tra...

I fail to see how your examples of multiple time travel events end the timeline. I only see that they end the existence of humanity, which is not the ...

Okay, maybe you're right. Nobody can witness the departure of the time machine. I don't see that there's much difference between 'overwrite' and 'trun...

Your responses indicated that you were unsure of my concept of time and time travel. I was attempting to clarify it for you. Roberta won't have any ex...

No. I don't know what you mean by horizontal and perpendicular dimensions. The time traveller originally passes through 1990 without any time travel e...

You used the word "rewind". I followed your usage to point out that time travel does involve a sort of rewinding of time. However, as I have repeatedl...

I've never said that the timeline is "truncated". By "truncated", do you mean "shortened"? In what sense is the timeline shortened? What I'm suggestin...

Yes, I have. Could you explain further why the universe cannot go on? I don't follow. This is a causal loop, I take it? You said that a causal loop on...

As I explained in my previous post, my use of "before" is in relation to (before and after) the time travel event, not in relation to the linear order...

True, but this doesn't make time travel any less possible. Also, if we were on a timeline which had had time travellers in its past then we can imagin...

I'm not sure what you mean by "spawn new timeline scenario". Two posts ago, I rejected the view that there is more than one timeline. However, I retai...

It looks like we're saying the same thing. However, this does not explain how a time traveller can have travelled to the past before their first ever ...

Yes, we are talking about the original timeline. As I said earlier: I think you've acknowledged this is not possible. It is why I was arguing that mor...

I was talking about the time before the first time travel event; before you've ever time travelled. You're talking about what happens if (or after) yo...

In that case everyone would remain on the same timeline, so it does not follow that every timeline would quickly have a population of zero. This still...

Unless more than one person used the same time machine to time travel together. I don't understand why the planet would quickly have a population of z...

I'm considering Bob to be the first ever time traveller. This is because I find the logic of single timelines and closed loops to be problematic at th...

That could be, but the existence of Bob and his time machine ends on the original timeline with the time travel event. This does not happen to anythin...

It did not exist before Bob travelled to it; the new timeline is created by Bob's time travel. It is the same as the original timeline, except now wit...

As long as you move at a relatively different speed to the rest of us, I suppose. Anyhow, that's not quite what you said earlier, which was that you a...

According to the second clause, the time traveller always appears alongside their younger self in the past. The problem with this view is that the eff...

Having given this some further consideration, although some may find it unsatisfactory that Bob does not kill himself on the original timeline, I beli...

It does exist. It's the same 1990 that was there before (on the original timeline), except that before it did not contain any time travelling Bob. The...

I have never said this. Logically, it is necessary for Bob to build and use the time machine in 2024 before he time travels to 1990. This is not creat...

Could you explain why it must be a "new thing, a copy" of 1990 recreated in 2024 and why Old Bob cannot actually travel back to 1990? It seems logical...

I don't recall why but I never fully endorsed the growing block theory. However, let's leave those ontological theories aside for now. They will proba...

Thanks @"AmadeusD". Your comments are appreciated here. I would say Kant was alive in 1776 too!

Only one of these two statements is "in "if" form". Anyhow, do you deny that Kant was alive in 1776?

Thanks, but it would be a stretch to call it a summary. I just transcribed most of the very short video. I propose that we avoid bringing presentism a...

This seems inconsistent with the video you posted which describes time as “a measurement of the progression of events”. You appear to deny that there ...

One might equally demand to prove the existence of a single timeline before progressing further. I don’t see how this might work either way. I’m merel...

Thanks for posting the video. The problems associated with time travel cited in the video are as follows: 1. Time is not a physical object that can be...

Absolute nonsense. Goodbye.

You said it wasn't clear what the statement or its terms mean. How do you know it's not true if you don't know what it means?

Non sequitur. If it's an unclear statement, how does it follow that it's not true? Very poor. You've offered zero support for your assertion that time...

I already answered that. It's possible that someone could invent the technology for time travel. You said it was impossible and that my premise was fa...

Why do you say it's impossible? It is possible that someone will invent the technology for time travel in 2024.

There is no need to "make the universe as it was in 1776" or to raise Kant from the dead. If I travel to 1776, then that was a time when Kant was aliv...

Kant is alive in his time. I'd be going back to his time.

I agree. I don't understand this argument: Time travel has nothing to do with waking the dead or rebuilding demolished castles.

Likewise when I say "I am at the present time" or when you talk about the present: you are not specifying anything about the times themselves, but you...

On my view, there is simply no paradox. The timeline branches off into two parallel timelines once time travel first occurs. The Grandfather "paradox"...

I could say that I am "here" at my current location (or "geographical place"), whereas earlier I was at a different location and later I might be at a...