If this is a mathematical equation
1998 (down arrow) 666^ divided by 4.
It says 1998 (arrow means and/or) 666 to the power of (assuming 1 since there is no number) divided by 4
666x666= 443556 (4+4+1+5+5+6=27)
443556/4=110889 (1+1+0+8+8+9=27)
11-08-89
The date November 8, 1989
This is the date they tore down the Berlin Wall
In the book "Dancing the Dream" Michael has a short story called Berlin 1989.
'They hated the wall, but what could they do? It was too strong to break through. They feared the Wall, but didn't that make sense? Many who tried to climb over it were killed. They distrusted the Wall, but who wouldn't? Their enemies refused to tear down one brick, no matter how long the peace talks dragged on. The Wall laughed grimly. "I'm teaching you a lesson," it boasted. "If you want to build for eternity, don't bother with stones. Hatred, fear and distrust are so much stronger." They knew the Wall was right and they almost gave up. Only one thing stopped them. They remembered who was on the other side. Grandmother, cousin, sister, wife. Beloved faces that yearned to be seen. "What's happening?" the Wall asked, trembling. Without knowing what they did, they were looking through the Wall, trying to find their dear ones. Silently, from one person to another, love kept up its invisible work. "Stop it!" the Wall shrieked. "I'm falling apart." But it was too late. A million hearts had found each other. The Wall had fallen before it came down.'
In my interpretation "The Wall" is the illuminati. Nobody had the courage to tear it down, or expose it. As they think building for eternity is through hatred, fear and distrust. The ones unfortunately trapped by them thought their was nothing they could do until they realized they had their families and that love can tear down anything. So through this love of "dear ones" the wall is being torn down and they don't even know it. Michael is depending on his family and friends to help take down the illuminati.
Could it be that he wrote this on the "Dangerous" album to warn us of the danger?
Also the down arrow in logistics means no monotonic decreasing. The true values of each number will remain the same. So if 1998 is equivalent to 27 and 666^1 is equivalent to 27 and that number divided by four is 27 it means the true values of ear are 27 27 27.
If you mirror image that it looks like TS TS TS.