Now, you don't have to buy that and individuals undoubtedly found the strain too much from time to time, but what's interesting, is rather the ideal, the claim, the theory.
You haven't tried to run a house with tiresome servants and ailing children, and you don't realize what a strain it is at times, and how molehills become mountains, because there are so many of them piled on to each other.
It's easy to guess why 3-D is struggling in movies and television sets: People don't want to be burdened with 3-D glasses, or worry about eye strain, and pay a premium for the privilege.