No, it decreases with every step of your argument. If

X = .00000001%

Y = .00000001%

Z = .00000001%

then

X * Y * Z = .0000000000000000000000000001%

This is like saying if you step off the roof, there’s a chance that all the air molecules will randomly happen to be moving upward at the same time, and you’ll float instead of falling. It’s a long way from “it might be possible” to Musk’s assertion that it’s “probable.” Yes it’s statistically possible you could step off the roof and float on air, but I wouldn’t try testing it experimentally.