The problem with the fall of the Wall is this:

The Brandenburg Gate and the nearby Reichstag are located at the eastern end of the Tiergarten and therefore at the end of the world from a West Berlin perspective. At the daily press conference around 7:30 pm, Schabowski said that every GDR citizen had the right to travel outside the country and that, as far as he knew, this applied immediately. And, indeed, from around 9 p.m. onwards, Western TV crews filmed the spectacle in front of the Brandenburg Gate.

Only. It was pitch dark at night, lit up by bright batteries of spotlights. How was that possible? Who laid the kilometers of power lines? When did it happen? Such powerful generators weren't available on every corner back then, and certainly not in the island city of West Berlin.

Of course, as a German, I was jubilant at the time. My doubts about the process only arose much later. I think the whole thing had been negotiated beforehand, because the Soviet bloc was simply broke. It was a huge show!