I can’t think of a source for this so take it as you wish but at some point in history it was attempted to mitigate this by changing the reading direction every other sentence so you’d be able to read in a continuous stream. It failed for obvious reasons.

Ancient-enough greek includes examples of left-to-right, right-to-left, and alternating line orientation, and may be what you're thinking of.

https://en.wikipedia.org/wiki/Boustrophedon