There are up to a dozen possible routes, and the direct one versus the scenic one versus the loop-de-loop versus the dead end changes from person to person.

FORBES: So Reachable, We're Unreachable: The In-Box Perplex and the Content Marketer

Dr Stojanovic makes a DNAzyme into a logic gate by attaching a loop of DNA at one end that prevents the DNAzyme from working.

ECONOMIST: DNA computing

Predications are hard, especially about the future, but it seems increasingly likely to me that the feedback loop may not stop, we will see a full-fledged bubble and that it will only be able to end in a meltdown.

FORBES: Housing's Positive Feedback Loop and the Coming Meltdown