In search of an English word/phrase that describes the feeling when one feels stress from knowing important information that others do not

A friend describes this feeling when reading his fictional tales.

Key characters interact in a way that would be completely different if they knew something(s), but the only person who knows that information is not part of the story and is in fact the reader, who is omnipresent.

The best phrase I can come to is: 'stress from knowing the consequences and potential differences in reality from the ignorance of others'

I would go as far to say that this word would most likely need to be a phrase in English and could apply to any situation where one experiences stress from others being ignorant and/or experiencing the result of being ignorant, regardless of the context.

Additionally, I would argue that a secondhand emotion is not a likely choice to hold this description. The ignorant are only living the stress from the result of their ignorance.

The actors (fictitious or real) merely feel as they do under the spell of their own ignorance while the one experiencing 'stress from knowing the consequences and potential differences in reality from the ignorance of others' is third-person, omniscient OR universal omniscient (depending on depth of context) with or beyond the omniscient narrator.

In scope of time, the word/phrase would not necessarily be interconnected with foresight. Information is known at a moment of time that is relative to the information becoming of breath/thought to the actors. There would not necessarily be any form of knowing the future, merely knowing all perspectives of the focused actors collectively as a third, observing and unaffected party.

I would wager to say that this question is not a duplicate. I am in search of a word/phrase that describes the feeling, not the action/activity.

Appreciate the help!

Solution 1:

The burden of omniscience

Is fairly succinct and encapsulates the idea you've described I would say.

Burden

1. A heavy load that you carry.
2. Something difficult or unpleasant that you have to deal with or worry about. (Cambridge)

Omniscient

Having or seeming to have unlimited knowledge. (Cambridge)

The phrase has been used before (to my surprise) in slightly different contexts.

For example, meaning the weight on someone's shoulders to get everything right, when they have complete insight and oversight into a given task at hand in this humorous article titled:

The burden of omniscience (The Baltimore Sun)

And here, in a usage which more closely resembles your intended meaning:

The... burden of omniscience of those at the top...all that is forbidden to those at the bottom is demanded of the master classes... they must attempt to do the seeing, hearing, smelling, tasting, feeling, thinking and decision making for the whole society. (The Illuminati Papers)

Both examples convey the idea of responsibility (and stress) that comes from being all knowing, or of privileged insight, which I would say is very close to the meaning you have mentioned in your question.

Solution 2:

He feels "the weight of knowing".

I realise this is similer to Gary's answer- burden of omniscience

I found a few references on the internet e.g. a song The Weight Of Knowing by The Astral Plain

A moment in a lifetime, a teardrop in the sea,
the words from your precious lips,
mean more than you can see.

But my heart can stand the weight of knowing
that we will one day cease to be,
and the only thing that keeps me going,
is that i wake up to you and me.

You've got your life, an open book a secret,
and i'd give my life if only just to see it.