The researchers powering the write-up indicate that ethical questions surround the life2vec design, like shielding sensitive facts, privacy, along with the part of bias in data. Note: All the images in the following paragraphs are actually taken from @nathanbenaich, among the organisers in the event. My answer to your latter https://cruzngzsm.therainblog.com/32946138/the-artificial-intelligence-event-diaries