Tempus AI's $1.5B all-stock acquisition of Personalis is smart long-term positioning despite the dilution-driven dip. Owning Personalis's NeXT Personal MRD technology outright lets Tempus pair liquid-biopsy recurrence testing, one of oncology's fastest-growing areas, with its multimodal dataset and AI at scale. That extends Tempus from diagnostics into high-margin longitudinal monitoring and could strengthen its moat, though execution will decide it. x.com