All of it, but that's more because it was interesting following the author's thinking. However, this particular paragraph is rather intriguing:

Reframing viruses as commensal genetic update vectors offering access to a vast and crucially important genetic repertoire would necessitate a change in how we saw our relationship, not just to viruses, but to the entire biosphere. Rather than something to insulate ourselves from, as something separate and other, it would lead naturally to an understanding of ourselves as an intrinsic, inextricable element of the biosphere. Our very genomes, which we’ve been accustomed to seeing as fixed from birth, become permeable, open to modification, fluidly connected to a genetic ocean. Evolution becomes not the outcome of a bloody war of attrition, but a collective adventure: evolutionary phase changes are something in which, in principle, an entire species can – and in general does – take part in together.