Among the technologies that are emerging in the age of end-of-scaling CMOS, silicon photonics is perhaps the most promising to enable a smooth transition toward a new generation of post-CMOS computing systems. During the past decade a series of major breakthroughs in silicon photonic devices have demonstrated that all the components that are necessary to build chip-scale photonic interconnect components (e.g. modulators, filters, switches, detectors) can be fabricated using common CMOS processes. This key property of silicon photonics could allow a gradual integration of optical communication into CMOS integrated circuits. The photonics role can be increasingly expanded until it becomes central for the systems built with those so-called More-than-Moore technologies. Critically, during this transition silicon photonics could enable continued scaling of performance for a variety of applications because the unique properties of a chip-scale photonic network are not limited to the cross-chip communication distances. Instead, on-chip, board-scale, and cluster-scale distances are all equivalent in terms of optical communication performance. This is a fundamental difference with electronic communications, which must adhere to stricter bandwidth-distance product limitations.