These are the replies members added to Parallel Universe, one of the original threads from John Titor’s time on the board, in 2003–2008.
To keep the original thread exactly as it was in 2000–01, those later replies now live here, in their original order and with their original dates, likes and quotes. Nothing was removed.
The original thread is closed and preserved as the historical record. The conversation continues here.
Hey I believe that you are right with your tree theory. Though that was a vast understatement. For it has been theorized that whenever it is possible for an atom to take more than one course of action a parralel dimension can must and will form to make sure all possible roads are traveled. So in theory as I am typing there are hundreds of different universes being formed from the multitude of different possibilities of the millions of atoms in the rooms actions. Its an interesting thought to think that somewhere in one of the uncountable dimensions you could be dead or worse while you live in this one reading my message. (chew on that for a while) 
I am a firm believer that everything is perfect and that nothing in our Universe could possibly be any different. In other words, every thing that is is the result of everything that was. I believe that by changing the past we change its memory and the memory of the present. The time traveler’s memory would not have changed, and he would have no one to substantiate his claims that he changed anything. I believe that some of the things John said were false. His mentioning that his worldline would not change as a result of anything he did, for example. I believe that may have been the theory when he left, but I believe that was merely because things that changed could not be substantiated by anyone else. If no one mentioned any changes then I’d keep the fact to myself as well (as opposed to being accused of changing the future for the worse). The confidence level that John mentioned sounded very accurate to my impression of reality, and effects of the degree of variance that he described sounded very plausable. However, the past that he traveled to, in my opinion, was indeed his past and he was indeed changing his future and the future of everyone involved. I also believe that the confidence varience only indicated the difference between his present and the future of our present because of the changes he would be making in the reality he would be returning to. It may also be possible that because of the changes he made that his machine no longer had an accurate reading of the quantity of effect his presence would have. In addition, he may have caused other problems such as the site of his departure being moved and therefore the substance of his return location not being as it was when he left.
Profile for TimeTravel_0
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Name: TimeTravel_0
Title stranger
Total Posts 1
Registered on 03/21/04 10:40 PM
Hmm…how can a post made from 2000 be made on a member who joined 2 months ago?
also why are all members after a certain date have the “REGed” field in their sidebars. This is too strange, speaking from someone like myself who runs and modifies forum software for public web forums.
I am Alfred Titor i live in 2038 my brother jonh titor is died yesterday i go in this time because i fright
That confirm that you are from alternate Timeworld, cause John is according to his mission at CERN before jumping to 2000 then to 1975 LOL!!!
Uh…no. You go in this time because you watch RAI 2 “Voyager”.
bump. 
Back in the day when “time travelers” could post and questions could be asked them
and the moderator did not chase them away or try to ridicule them.
Interesting conversations actually took place.
i will add the following:" and the Moderator and/or his followers -Like a Cult- trying to debunk every person, without the benefice of the doubth, did not chase them away or try to ridicule them.
And the worst part is that “they” will not get “any” new data regarding Time travel…
i.e:
this Thread:
This will be a “perceptible” Hidden Agenda of TPTB here on TTI.
Then:
Define Word “OPEN”:
a. Accessible to all; unrestricted as to participants: an open forum.
b. Free from limitations, boundaries, or restrictions
Example:
The Time Travel Institute was a Open and Friendly Forum!!!
if a 60 year trip into the past causes a divergence of 2.5 % then what would the divergence be for a 10 second trip into the past via the Toplogical displacement Unit (TDU)?
To calculate the divergence for a 10-second temporal jump, we apply the TDU divergence function:
D(Δt) = 1 − e⁻ᵅ⁽Δᵗ⁾²
First, we determine the multiversal decoherence constant α using the baseline 60-year jump with a divergence of 2.5% (0.025):
0.025 = 1 − e⁻ᵅ⁽⁶⁰⁾² e⁻³⁶⁰⁰ᵅ = 0.975 −3600 α = ln(0.975) α = −ln(0.975) / 3600 ≈ 7.0327 × 10⁻⁶ years⁻²
Next, we convert 10 seconds into years (using 365.25 days per Julian year):
1 year = 365.25 × 24 × 3600 = 31,557,600 seconds Δt = 10 / 31,557,600 ≈ 3.1688 × 10⁻⁷ years
Now, we calculate the exponent term α (Δt)²:
(Δt)² ≈ (3.1688 × 10⁻⁷)² ≈ 1.0041 × 10⁻¹³ years² α (Δt)² ≈ (7.0327 × 10⁻⁶) × (1.0041 × 10⁻¹³) ≈ 7.0618 × 10⁻¹⁹
Because the value of α (Δt)² is extremely small, we use the Taylor expansion approximation e⁻ˣ ≈ 1 − x:
D(10 s) = 1 − e⁻⁽⁷ˑ⁰⁶¹⁸ ˣ ¹⁰⁻¹⁹⁾ ≈ 7.0618 × 10⁻¹⁹
Converting this decimal value into a percentage:
D(10 s) ≈ 7.0618 × 10⁻¹⁷ % (or 0.000000000000000070618%)
For a 10-second trip into the past, the worldline divergence is approximately 7.06 × 10⁻¹⁷ %—for all practical purposes, zero, meaning the vehicle remains locked onto the exact same space-time sheet in the multiverse.
The Loop Avoidance Requirement governs ultra-short temporal jumps (such as Δt = 10 s) where multiversal divergence D(Δt) approaches zero. Because the quantum-state overlap satisfies ⟨Ψₒᵣᵢgᵢₙ ∣ Ψₜᵣgₑₜ⟩ ≈ 1, the vehicle re-indexes onto the same spacetime sheet M⒪ᵣᵢgᵢₙ rather than branching into an alternate manifold sheet. To prevent localized spatial overlap or hull collision with the pre-jump vehicle, the TDU must enforce a physical or temporal displacement vector Δx^μ = (c Δτ, Δr) that satisfies:
|Δx^μ| > Lᵥₑₕᵢcₗₑ
Where:
Δx^μ is the four-position displacement vector between the origin and destination arrival coordinates.
c Δτ is the proper-time separation maintained by the Metric Anchor Pylons.
Δr is the local 3D spatial offset (Δr = √(Δx² + Δy² + Δz²)).
Lᵥₑₕᵢcₗₑ is the maximum physical bounding diameter of the vehicle chassis.
Because D(10 s) ≈ 7.06 × 10⁻¹⁷ % is far below the multiversal decoherence threshold required for natural worldline branching, loop avoidance cannot rely on multiversal separation. Instead, the Metric Anchor Pylons must actively inject a non-zero spatial offset Δr > Lᵥₑₕᵢcₗₑ or adjust proper-time synchronization Δτ to ensure the arriving wave function materializes outside the bounding volume of its past self.
Who knows? Titor never stated what divergence was, as he used the term, what it was that was diverging, or how to compare two different universes and slap a very specific percentage onto the (undefined) divergence.