What we don’t know: Why is life chiral?

Why life is chiral has puzzled scientists for well over a century.

What we don’t know: Why tumors get addicted to drugs!

Let us say one has a cancer and received chemotherapy, a regimen of chemicals (drugs) used to harm fast dividing cells.

Boom! Some of the cells in the tumor get addicted to this drugs and they are better of with chemotherapy. When the drug is withdrawn (stop chemotherapy), those cells start dying or killing themselves. The underlying mechanism of this phenomenon: UNKNOWN.