Hello, I'm an undergraduate conducting a study about the transport.

While doing this, I recently faced on some questions that bothering me so far.

Of course I've studied about such notions like digital twin, metaverse, vr, ar, and something like that and I've got that the digital twin let us simulate and predict future and apply the best approach to solve the problem.

But still I don't know to how much degree it can influence. I guess this is because I haven't seen the user interface of digital twin till now...

For example, are we able to influence reality right through the digital twin? In other words, under the digital twin platform can we operate and change the real world enviornment by modifying the preset value calculated by the platform? I mean I wonder if we can influence by just clicking the button and modifying the digital twin, not the real world module of infrastructure at all.

And plus, if so(can control the reality by just modifying the digital twin), can it be fully automized? Thus, can a digital twin world conduct following procedures by itself

'find problems of the system - shut down the system or initiate the backup scenario - meanwhile iterate the simulation about the problem - find the best scenario - transmit it to real world module - reinitiate so that the scenario can be operated with the optimized scenario'

Or does 'with digital twin we can optimize and predict future' mean that we can find the best and efficient solution with digital twin, but have to modify real world component if we wanna apply it?