The downfall of anti-angiogenesis

This presentation  illustrates the feebleness of current medical reasoning.
Here is a story of an idea how to cure cancer and its downfall.
A drama which spreads unnecessary suffering.
The idea is simple. Tumors are nourished by blood vessels. 
Cut off their lifeline and they disappear. Unfortunately
this simple reasoning is false. Mainly since it ignores
the context in which the tumor exists, our organism