Editor's note: The following is The Week's Good News newsletter. You can subscribe to it on Substack here or register to have it emailed to you once a week here.A ballerina with amyotrophic lateral sclerosis (ALS) danced again through a digital avatar powered by her brainwaves. At a live performance in Amsterdam, Breanna Olson wore an electroencephalogram headset that captured and “translated” her brain activity and “specific motor signals associated with imagining certain dance movements,” allowing her avatar to dance in real time, said the BBC. The headset’s creator, Dentsu Lab, said it aims to make this “new brainwave interface” accessible to everyone with ALS and other motor neuron diseases.San Diego has excess water to sell to drier statesSan Diego County has built up its water infrastructure to the point it can now sell excess capacity to nearby states. Following a long drought in the 1990s, the San Diego County Water Authority (SDCWA) built the massive Carlsbad Desalination Plant, expanded its reservoir and acquired rights to a Colorado River allocation. Today, with desalinated water to spare, SDCWA is negotiating a swap of its Colorado River rights to Arizona and Nevada, providing the “parched” states with an “unconventional lifeline,” said The Wall Street Journal.