So, If We Can Travel In Time, Can We Change The Past? - Deepstash
Boost Your Emotional Intelligence

Learn more about motivationandinspiration with this collection

How to handle conflicts

How to identify and regulate emotions

How to develop self-awareness

Boost Your Emotional Intelligence

Discover 40 similar ideas in

It takes just

4 mins to read

So, If We Can Travel In Time, Can We Change The Past?

No.

That would create a contradiction, and there are no contradictions.

Remember, on the block universe model, the past is no different than the future or the present.

Everything is relative: what is past to us, will be future to someone else.

188

639 reads

MORE IDEAS ON THIS

Everything Everywhere All at Once

Our birth is out there in space-time. Our death, too, is in space-time. Every moment of our lives is out there, somewhere, in space-time.

So says the block universe model of our world.

According to the block universe theory, the universe is a giant block of all the things that...

204

1.85K reads

In The Block Universe, Time Doesn't Pass

It often seems as though where we are "today" is present, and "yesterday" is past, and "tomorrow" is future.

It also seems the present moment changes too — after all, tomorrow it will seem as though tomorrow is present, and yesterday it appeared yesterday was present!

So from ...

189

930 reads

The “Now” And The “Here”

Think about the idea of "here". I am here. You, while reading this, can truly say "I am here", even though your "here" is different to mine.

On the block universe model, talk about the "present" or "now" works just like talk of "here".

Remember last week when you said...

186

816 reads

*All* Of Time And Space

*All* Of Time And Space

Two of that cuboid's dimensions (let's say height and width) represent two of the universe's three spatial dimensions.

Leave out the third spatial dimension in the above diagram (the length) and replace it with time. At one end of the cuboid is the big bang. At the other is th...

187

995 reads

The Block

The Block

How can this be?

The block has four dimensions: three spatial dimensions — say length, height and width — plus a fourth temporal dimension, or time. Or let's make it easier, by visualising the block model of our world as a three-dimensional rectangle, or cuboid.

189

1.58K reads

What Will Happen If We Travel To The Past?

We’ll get out of our time machine and start walking around. We’ll breathe the air and chat to people.

Obviously, this will have effects on the time we travel to. We’ll tread on ants; we’ll talk to people from that time; we’ll pat horses, and feed donkeys and so on.

We’ll act, ...

187

583 reads

Location, Location, Location

Bearing this in mind, it is possible to see how to make sense of the idea of past and future.

Just as on this model “now” picks out whatever time I happen to be located at, “past” picks out any time (or events at those times) that are earlier than my location, and “future”...

184

637 reads

Does That Mean We Can Travel In Time

If time is just another dimension, a lot like the spatial dimensions, does that mean we can travel in time?

The short answer is yes.

Of course, things are way more complicated than that. Travelling in time is clearly much more difficu...

183

623 reads

Making The Past, The Past. Keyword: *Making*

Nothing a time traveller does changes anything in the block. Instead, what the traveller does at any time makes that time, and later times, the way they are.

That means that we know that some things we attempt to do in the past, fail. We know that Hitler r...

192

543 reads

Speed: Light. Route: Wormhole.

We already know that travelling very fast will result in time dilation, so we know it's possible to travel into the future just by travelling very fast.

We can travel quite a way into the future if we can travel at some reasonable percentage of the speed of light. ...

185

583 reads

Confused yet?

Let's recap.

What we do tomorrow makes tomorrow the way it is, and the way it always has been. What we do in the past makes the past time the way it is, and always has been.

If we travel to the past, we are part of the past. Importantly, ...

189

564 reads

“Earlier Than” And “Later Than”

Since we are always located wherever we are (that's trivially true), everyone is located in the present, just as everyone is located at the place they call “here”.

According to the block universe view, time or temporal relations of “earlier than” and “later than”

183

676 reads

CURATED FROM

CURATED BY

xarikleia

“An idea is something that won’t work unless you do.” - Thomas A. Edison

Would you time-travel just to make things as they are, if you could not change things as they are? Not really a question.

Related collections

More like this

6. when thinking about life, remember this: no amount of guilt can change the past and no amount of anxiety can change the future.

6. when thinking about life, remember this: no amount of guilt can change the past and no amount of anxiety can change the future.

You can’t change your past. What is done is done. It’s useless to feel guilty about what you’ve done, instead you have to take everything as a lesson. Learn from your mistakes and try not to do them again.

Also, you don’t have to stress too much about your ...

The Manifestation In The Present Moment

Yoga Nidra reveals to us that we always live in the present moment. The reality is only the limitless now. When we think about the past and the future, we fail to realize that when we were living in the past, it was now, and when we will live in the future, it will be now at that moment...

The present moment is all we will ever have, so live in the here and now

Now is all there is. The mind wants to live in the past or it wants to look to the future for fullfillment. 

  • Observe how your mind reflects back to the past or to the future. As soon as you notice you are not in the present moment you become present.
  • Your primary focus should b...

stash-superman-illustration

Explore the World’s

Best Ideas

200,000+ ideas on pretty much any topic. Created by the smartest people around & well-organized so you can explore at will.

An Idea for Everything

Explore the biggest library of insights. And we've infused it with powerful filtering tools so you can easily find what you need.

Knowledge Library

Powerful Saving & Organizational Tools

Save ideas for later reading, for personalized stashes, or for remembering it later.

# Personal Growth

Take Your Ideas

Anywhere

Organize your ideas & listen on the go. And with Pro, there are no limits.

Listen on the go

Just press play and we take care of the words.

Never worry about spotty connections

No Internet access? No problem. Within the mobile app, all your ideas are available, even when offline.

Get Organized with Stashes

Ideas for your next work project? Quotes that inspire you? Put them in the right place so you never lose them.

Join

2 Million Stashers

4.8

5,740 Reviews

App Store

4.7

72,690 Reviews

Google Play

Shankul Varada

Best app ever! You heard it right. This app has helped me get back on my quest to get things done while equipping myself with knowledge everyday.

samz905

Don’t look further if you love learning new things. A refreshing concept that provides quick ideas for busy thought leaders.

Ashley Anthony

This app is LOADED with RELEVANT, HELPFUL, AND EDUCATIONAL material. It is creatively intellectual, yet minimal enough to not overstimulate and create a learning block. I am exceptionally impressed with this app!

Sean Green

Great interesting short snippets of informative articles. Highly recommended to anyone who loves information and lacks patience.

Giovanna Scalzone

Brilliant. It feels fresh and encouraging. So many interesting pieces of information that are just enough to absorb and apply. So happy I found this.

Ghazala Begum

Even five minutes a day will improve your thinking. I've come across new ideas and learnt to improve existing ways to become more motivated, confident and happier.

Jamyson Haug

Great for quick bits of information and interesting ideas around whatever topics you are interested in. Visually, it looks great as well.

Laetitia Berton

I have only been using it for a few days now, but I have found answers to questions I had never consciously formulated, or to problems I face everyday at work or at home. I wish I had found this earlier, highly recommended!

Read & Learn

20x Faster

without
deepstash

with
deepstash

with

deepstash

Access to 200,000+ ideas

Access to the mobile app

Unlimited idea saving & library

Unlimited history

Unlimited listening to ideas

Downloading & offline access

Personalized recommendations

Supercharge your mind with one idea per day

Enter your email and spend 1 minute every day to learn something new.

Email

I agree to receive email updates