Glasnost: the reform that could not be partial
Why opening speech dissolved the state in six years.
What happened
Gorbachev opened speech — glasnost — to generate the pressure he needed for economic perestroika. But once the press could report, what it reported on was the Party itself: the famines, the Terror, the 1940 Katyn massacre (admitted only in 1990), the secret protocols that had annexed the Baltic states. And there was no non-Party economy, no independent civil society, no genuine federal structure for the system to retreat into.
The results
Six years later the state had dissolved. The reform could not be partial, because the pieces were all the same piece: remove the Party's monopoly and nothing else held the floor. The Baltic republics walked out; the August 1991 coup by hardliners trying to halt the unravelling only accelerated it.
Why it happened
This is the structural lesson of the whole record, read in reverse. A system that had absorbed every independent institution into itself could not be reformed gently, because it had left nothing underneath to catch the country when its politics changed. The monopoly that made the regime stable for decades is exactly what made its reform fatal.