The two parts of technology that lower the threshold for activism and technology is the Internet and the mobile phone. Anyone who has a cause can now mobilize very quickly.
The average American returning from a trip abroad likely - and understandably - assumes the contents of his or her electronic device does not come close to meeting the threshold of 'criminal' activity, such as would give a government agent the right to seize and peruse their iPad just because they are returning from a vacation.
I shoot just one moment at a time... These moments are beneath the threshold of perception.
My pain threshold is quite high when it comes to vanity.
Those who have learned to walk on the threshold of the unknown worlds, by means of what are commonly termed par excellence the exact sciences, may then, with the fair white wings of imagination, hope to soar further into the unexplored amidst which we live.
Writing is harder than acting. I enjoy acting for just the brevity with which you can be in the experience of doing it. Writing is kind of more satisfying in that you're creating a world and doing something that feels bigger, but it's very time consuming and has a higher threshold for failure.
A surprising number of scientific advances have been made and masterpieces of art created by individuals just on the threshold of adulthood.