If Tencent can manage it, China’s killer AI app won’t need to be built from scratch, says Catherine Thorbecke for Bloomberg Opinion. TOKYO: One of the biggest problems for China’s artificial intelligence sector is that no firm has created a killer AI app. Tech giants and startups have flooded the market and created a lot of excitement, but the competition has made it hard for any of these releases to differentiate themselves.  But what if it has been hiding in plain sight this whole time?