"Precision based" cannabinoids = targeting a single cancer cell and that is why Mr. Pidduck selected that phrase, precision based.
Now if you are in deep underground made of hardened concrete with steel reinforcement, how do I control the detenation of my bunker buster bomb so that it explodes at the right depth? I develop my kinetic energy based upon assisted gravitational forces, such as firinig off the built in rocket booster at just the right altitude so as to penetrate your bunker and then by reading the nano-Tesla magnetic fields as it goes deeper into the ground, it detonates at just the right magnetic field reading, and kaboom, your bunker now becomes a shrapnel containment room.
Precision based and timing is everything when to detonate