In a captivating, poetic ode to the beauty and strength of mixed languages, writer Julián Delgado Lopera paints a picture of immigrant and queer communities united not by their refinement of language but by the creative inventions that spring from their mouths. They invite everyone to reconsider what "proper" English sounds like – and imagine a blended future where those on the margins are able to speak freely.

In a practical, playful talk, leadership visionary Anne Morriss reinvents the playbook for how to lead through change -- with a radical, one-week plan to build trust and fix problems by following a step per day.

Neurotechnology, or devices that let you track your own brain activity, could help you deeply understand your health. But without privacy protections, your innermost thoughts, emotions and desires could be at risk of exploitation, says neurotech and AI ethicist Nita Farahany. She details some of the field's promising potential uses -- like tracking and treating diseases from depression to epilepsy -- and shares concerns about who collects our brain data and how they plan to use it, ultimately calling for the legal recognition of "cognitive liberty" as we connect our brains and minds to technology.

What if we could use brain waves to treat Alzheimer's? Professor and neuroscientist Li-Huei Tsai details a promising new approach to artificially stimulate gamma brain waves using light and sound therapy, to increase connectivity and synchrony and delay the onset of this deadly disease. This non-invasive therapy has already been shown to work in mice -- now it's on to human clinical trials, with the potential to usher in a brighter future for everyone. (Followed by a Q&A with head of TED Chris Anderson)

Dinosaur tracks can teach us more about the day-to-day behavior of creatures like T. rex or the Stegosaurus than their skeletons ever could, says paleontologist Martin Lockley. From a "dinosaur's lover's lane" in Colorado to the rocky shores of South Korea, Lockley explores what we can learn from the traces of some of the most impressive creatures ever to walk the Earth.