4 more would be ridiculous to enforce. "Honor thy father and mother." Right. Every teen would be in prison. "Don't bear false witness." Seems abit harsh and narrow to convict everyone who pretends to have witnessed something. Adultery? Really? In this day and age? And do not covet? Our consumerist society relies on coveting and getting people to covet more. It's good for the economy.
That's just leaves do not kill and do not steal. That's it. The only 2 laws you'd have to govern the human race. Unless you're suggesting all those weird Levitical laws about women on their periods, not eating shrimp and lobster, and not wearing clothes of different fabrics. We can and have done better.