Simulated life?

Since I watched "Inception" and "The World of Truman" first, when I saw this film, my first impression was the combination of the first two films. Although the story is not complicated, the shooting time was early enough. Make "Thirteen Degrees of Fate" a prototype work of this type of film. This type can be summed up as a structure, just like a sand table, the world in the sand table, from a height, is just a virtual existence. The question is, how can you be sure whether you are in the sandbox or out of the sandbox? I think the root of this doubt lies in the unknowability of the cosmic space. The space we are familiar with is nothing more than a city. We know that there are provinces outside the city, and there are countries outside the province. what? With such a small life, we are doomed to fail to understand this question.
When I was a kid, I had a very strange idea that I never communicated with, but now it keeps popping up and I can't be sure of the answer. I feel that this world is completely fake and that foreign objects exist only for me. When I look at them they appear, when I don't look there is nothing there. So I often turn my head suddenly, trying to witness the moment when the table behind me suddenly appears. When I was young, it was hard for me to imagine my parents at home after I went to school. I could never imagine my home without me in my mind. A table, when I don't touch it, it's just an image, and it only exists when I reach for it.
The fundamental reason why I think this way is that we cannot understand others at all, and true understanding does not exist. If someone said he was in pain, but I watched helplessly, how could it not hurt at all? Does everything outside of the self really exist?
Suddenly I remembered the "History of Western Philosophy" that my teacher printed for us this semester, and the beginning part has been arguing about this issue! It seems that I also had Cartesian potential when I was a child, but unfortunately I was born too late.
What I talked about earlier is whether life is simulated. What I'm going to say next is whether we can simulate life.
Is it possible for us to invent a device that has a piece of clothing that can have all the tactile experiences when put on, as well as release the smell, have glasses, and have a headset. When fully armed, you can get a full set of life experience. There are various stories preset in it, what do you want to do in it! With such a device, all we need in real life is sleeping and eating. Life only needs to solve the problem of food and clothing, while spiritual needs are solved by virtual equipment. In this case, mankind will have a huge change.
This is not alarmist, we have already taken the first steps towards it. Now that technology has replaced our general social activities, people have nothing to say when they are face-to-face, but they have a lively chat when they go online. This phenomenon is actually very strange. Two people want to communicate, but each is facing a screen. Direct human-to-human communication is going to get weird, just like it's weird right now if you want to contact someone without texting and calling, you just go to your house to find him. At that time, we can enjoy online in the virtual space, our avatars are extremely perfect, and real life is so dull and boring, the meaning is only to maintain life.

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