This is most likely a spotlight from the top of a building shining on the clouds, but it is still quite an interesting strange effect. Short video:
It could be done like the bat signal, where a shape is put close to the spot light. In this case, instead of calling Batman, they are calling … who?
Bizarre footage has emerged from China of a glowing rectangle appearing in the sky over Jinan, Shandong Province. According to local reports, the light may have been a spotlight projection onto clouds, but many residents were nevertheless baffled by its appearance.
RecorderChina says: A glowing rectangle-shaped object was filmed in the sky on August 13, in Jinan, Shandong Province. According to local reports, it might be the projection of the spotlight on the top of a skyscraper on clouds. – NewsFlare
Did Brickman respond to this call? Only Commissioner Gē dēng may know.
More seriously, if this universe is all a simulation as we have been exploring, there could be doorways to other times or to another universe entirely. The nearest exit may be closer than you think.
Are there rectangular UFOs? You bet.
A California witness at Oroville reported watching a large, rectangle-shaped object moving overhead under 500 feet that emitted a low humming sound, according to testimony in Case 83386 from the Mutual UFO Network (MUFON) witness reporting database.
The reporting witness and his wife were sitting on their front porch on April 15, 2017, when the event occurred.
I like the idea that there are doorways flying around all the time, delivering portals. You only need to place a mental order.