Question

Read the opening paragraph of “Virtual Reality Gets Real.”

In 1965, Ivan Sutherland, a computer-graphics pioneer, addressed an international meeting of techies on the subject of virtual reality. The ultimate virtual-reality display, he told the audience, would be “a room within which the computer can control the existence of matter. A chair displayed in such a room would be good enough to sit in. Handcuffs displayed in such a room would be confining, and a bullet displayed in such a room would be fatal. With appropriate programming, such a display could literally be the Wonderland into which Alice walked.”

What uncertainty about virtual reality is suggested by this paragraph?
It is unclear why a simulated reality would be beneficial to anyone but a thrill seeker.
It is unclear why a simulated reality would be beneficial to anyone but a thrill seeker.

It is inevitable that a simulated reality scenario would cause people to be uncertain about physical reality.
It is inevitable that a simulated reality scenario would cause people to be uncertain about physical reality.

It is unknown why a simulated reality would be essential to anyone but a game designer.
It is unknown why a simulated reality would be essential to anyone but a game designer.

It is unknown how people might react psychologically to a simulated reality that would appear to be real and scary.