That depends how you define Google's core competencies. Some of their main core competencies(where they lead the world probably) are AI/machine-learning and hig

That depends how you define Google's core competencies. Some of their main core competencies(where they lead the world probably) are AI/machine-learning and high-speed software development. Those skills are now the core of every business("software is eating the world"), so Google has lots of options. Another core competency is long-time investment in high-risk projects - which basically nobody does. Also one criteria of choosing projects for X - is projects in areas where there's little competition. Once you start from that point, maybe the analysis framework of "core competencies" is less useful.