Unknown particles

[Frederick35]

Science already knows particles: matter, antimatter, Majorana particle. How many types of particles there are in universe? Is it possible that matter is not the way to change the past and other particle must be used in order to change the past or send object in past?

 

[Pegii]

Interesting theory

 

[TimeFlipper]

Science already knows particles: matter, antimatter, Majorana particle. How many types of particles there are in universe? Is it possible that matter is not the way to change the past and other particle must be used in order to change the past or send object in past?

What are the other particles you feel are needed to change the past of send objects into the past?

 

[mariya94]

Yes, there was one case where scientists sent a photon through a wormhole and it interacted with its older self. This proves that changing the past is possible.

 

[Num7]

Is the universe infinite?

If it is, does that mean there are infinite types of particles?

 

[TimeFlipper]

I think its more likely to be an infinite amount of space