one day Lake Toba's gunna blow.....
It would be shocking if Toba's magma chamber were anywhere close to full, considering that it had one of the largest eruptions in history only 70,000 years ago. Yellowstone is a bigger threat to erupt- it's magma chamber could be full.
There isn't the slightest indication of any Toba eruption, in fact there's currently no activity at any Sumatran volcanoes.