AI consciousness and neuroscientifically plausible “seamless” mind-uploading

Masataka Watanabe, Associate Professor at the University of Tokyo’s School of Engineering, examines a test for AI consciousness. He proposes it as part of a scientific approach to deciphering consciousness that leads to “seamless” mind uploading. Today, there is much debate on whether artificial intelligence (AI) has achieved consciousness. (1, 2) My short answer is probably not, but with dedicated substantial resources, AI will achieve consciousness at some point. So, what is consciousness? Could we ever tell whether it resides in AI? How can we build a conscious AI, and what would be the purpose of doing so?