They concluded that the Chinese political leaders of the time had become too committed to winning that standoff. The Chinese persona includes a strong sense of pride and an unwillingness to ever back down for fear of losing face.
This is in their cultural DNA.
I then spent two fascinating years in 1999 and 2000 working for a French/Australian/Chinese radio network in Beijing and Shanghai and that same DNA resurfaced in the workplace and in negotiations I had with Party work-unit executives.
They will never admit error or failing at any level. Once proposed, a concept cannot be derailed.
The only exception is if a foreigner takes responsibility for the fouling of a project. I've witnessed this first hand too many times.
And that's what these current protesters, 30 years on, are facing; Beijing is forcing Hong Kong authorities to introduce a most primitive law and with para military troops in place, it would take a miracle for the Communist Party in Beijing to reverse their actions.
In 1989 students demanded democracy in an environment which was the antithesis of an open democracy.
Their dogged and brave appearances in the Square were never going to change the harsh status quo.
What eventuated was a late night charge against students, with bodies mowed down by tanks, rapid fire, shooting dead mainly young men and a devious late night sweep of bodies to remove the evidence.
Today, the reason for resistance is even more valid. This is a conservative protest to keep Hong Kong as it is. Hardly an unreasonable plea.
World leaders are refusing to address and complain to the Chinese about the crux of this unrest; Beijing wants Hong Kong to send selected individuals who face charges to the mainland.
Ninety-nine per cent of charged Chinese on the mainland are prosecuted. It's as crooked and as unfair as any regime could be in the modern world.
Mao would be proud of the strict control the Party is exerting on the people of Hong Kong.
Beijing wants Hong Kong to be more like communist China, not what they promised when the territory changed hands from British control to Chinese in 1997. It's a sad and disreputable return to the dark past.
Forget 1989, the international community has many more reasons to intervene today.
We have an incredibly more relevant and worthwhile cause to support and no one seems willing to stand up to the Middle Kingdom and even mention the issue.
This is a frightening abuse of human rights and is as unacceptable as any violent counter-reaction by Chinese paramilitary forces.
Where are Donald Trump, Boris Johnson and Scott Morrison when the oppressed need them?
The US Congress is warning China against any violent response to these protests but why are we not condemning such a sly, suspicious and corrupt law now?
This week, former Hong Kong Legislative Council MP Emily Lau told the ABC that Beijing is orchestrating all of what Hong Kong leader Carrie Lam is standing behind.
She said Beijing is now unable to negotiate or conciliate because they can never lose face.