unobtainable

It was tested in 2013, but Hill ruled that technological advances for even smaller pieces of DNA may yield previously unobtainable results.

In a way, the orphanage children are much sought after as they have received a level of education that is unobtainable for most in their own community.

“I have an obsession with the unobtainable,” he wrote to his sister.

For example, the machine would need steering magnets with fields of 16 tesla—33% higher than the current state of the art and likely unobtainable for 20 years, Murayama says.

But even for white Americans who supposedly are expected to be insulated from such issues, the American dream is still unobtainable.