I've already explained my ZIGZAG argument in many different ways, and there is no real need for offering any additional explanation as far as any sane person is concerned.
But, maybe somebody would like to see this kind of an explanation, just to be sure even more than 100 %, that there is no escape from the trueness and devastating effects (for RET) of this absolutely undeniable argument.
No matter to which exact cause you would like to assign (to give credit for) the Sun's huge "apparent" daily motion (in such a large arc) in the sky (apart from the Sun's own independent motion above the stationary Earth), or how you would like to name it ("the rotation of the earth" or "Alpha is a liar" or "Mikey is an idiot" or whatever other name you could come up with... ), NOBODY CAN DENY THAT THERE IS THE SUN'S HUGE DAILY "APPARENT" MOTION IN THE SKY, as we witness it every day!!!
Now, since we've just excluded (theoretically) the Sun's own independent motion above the stationary Earth as a possible reason for the Sun's "apparent" huge daily motion in the sky in such a large arc, you don't have to worry any more, up until you read the next sentence:
When you reach the turning point position (6am/6pm) on a rotating globe, you CHANGE THE DIRECTION OF ROTATION with respect to the Sun (from Right to Left or from Left to Right), no doubts about that!
Now, since you are within the Arctic circle (that is to say within 24 degrees from the vertical line of an alleged Earth's axis), you can observe the Sun (which is 40 degrees out (south) of the edge of the Arctic circle) for 24 hours continuously, in the moment of reaching the turning point the Sun should (by necessity) stop, and start to ("apparently") travel in an opposite direction across the sky.
This same principle should be applied (during Northern Winter) to all celestial "bodies" which are more than 24 degrees declined from the vertical line of an alleged Earth's axis, that is to say, to all celestial "bodies" which verticals (perpendicular lines with respect to the position of the observer on the Earth) intersect latitudes southern of the line of Arctic edge (lower than 66 degrees Northern latitude.)
So, no ZIGZAG, no ROTATION of the Earth, whatsoever!
Enjoy the truth!