Can We Travel Back In Time Quora?

Yes

. The only reason humans have not previously traveled back in time is because they haven’t needed to yet.

Has a time machine been invented?

In fact,

a time machine has already been built

. Scientists, however, are still working on how to make it as efficient as possible, like in the Back to the Future movies.

Does the past still exist?

In short, space-time would contain the entire history of reality, with each past, present or future event occupying a clearly determined place in it, from the very beginning and for ever.

The past would therefore still exist, just as the future already exists, but somewhere other than where we are now present.

Is it possible to go back in time and change the past?

Time Travel Theoretically Possible Without Leading To Paradoxes

, Researchers Say In a peer-reviewed journal article, University of Queensland physicists say time is essentially self-healing. Changes in the past wouldn’t necessarily cause a universe-ending paradox.

How do you travel back in time real?

1. Time travel via speed. This is the easiest and most practical way to time travel into the far future – go really fast. …
2. Time travel via gravity. …
3. Time travel via suspended animation. …
4. Time travel via wormholes. …
5. Time travel using light.

Does the future exist?

The past and future do not exist

and are only concepts used to describe the real, isolated, and changing present. This conventional model presents a number of difficult philosophical problems, and seems difficult to reconcile with currently accepted scientific theories such as the theory of relativity.

Can the future affect the past?

THE future can affect the past

, according to a bizarre new theory which adds even more weirdness to the strange world of quantum mechanics. The standard quantum theory dictates that all the particles in the universe have no definitive states – weirdly, that is, until they are measured.

Why do we age if time doesn’t exist?

There are many more ways our cells/particles could be arranged which wouldn’t enable us to be alive

. Age is therefore our body breaking down into a more chaotic state. We measure this process over time and call it age. The only Time than exists is NOW, nor before neither after.

Can a wormhole exist?

Einstein’s theory of general relativity mathematically predicts the existence of wormholes, but

none have been discovered to date

. A negative mass wormhole might be spotted by the way its gravity affects light that passes by.

Where is time machine in India?

KOLKATA: Time Machine, one of the most popular attractions at

Science City

, is back in operation after a 20-month shutdown for upgrade. In its new avatar, the Time Machine is not only more vivid with a switch to LED screen instead of projection, the spectator capacity has also doubled.

Who discovered the time machine?

An Iranian scientist has claimed to have invented a ‘time machine’ that can predict the future of any individual with a 98 per cent accuracy. Serial inventor

Ali Razeghi

registered “The Aryayek Time Traveling Machine” with Iran’s state-run Centre for Strategic Inventions, The Telegraph reported.

Is it normal to want to go back in time?

People go through a series of difficult experiences in life that might force them to contemplate their past. During these periods of reflection or regret, they’ll sometimes wish they could turn back time, either to return to “the good old days” or to undo the mistakes they’ve made.

Can we go in future?

While

it’s not possible (yet) to travel to the future fast than the rate at which we’re doing it now

, it is possible to speed up the passage of time. But, it only happens in small increments of time. And, it has only happened (so far) to very few people who have traveled off Earth’s surface.

Is time loop possible?

Is time travel possible? Short answer:

Yes

, and you’re doing it right now — hurtling into the future at the impressive rate of one second per second. You’re pretty much always moving through time at the same speed, whether you’re watching paint dry or wishing you had more hours to visit with a friend from out of town.

Does time exist without space?

Time cannot exist without space

and the existence of time does require energy.

Where does the future come from?

What did Einstein say about time being an illusion?

Albert Einstein once wrote: People like us who believe in physics know that the distinction between past, present and future is only a stubbornly persistent illusion.

Time, in other words, he said, is an illusion

. Many physicists since have shared this view, that true reality is timeless.

Is time a quantum?

A quantum theory in which

time is a quantum variable with a discrete spectrum

, and which is nevertheless consistent with special relativity, was proposed by Chen Ning Yang in 1947. Henry Margenau in 1950 suggested that the chronon might be the time for light to travel the classical radius of an electron.

Do Tachyons exist?

A tachyon (/ˈtækiɒn/) or tachyonic particle is a hypothetical particle that always travels faster than light.

Physicists believe that faster-than-light particles cannot exist

because they are not consistent with the known laws of physics.