When Johnnett Kent learned she had lung cancer, the COVID-19 pandemic was already descending on California. Her doctor didn’t want the 49-year-old to risk her health by heading into a crowded clinic between surgery, radiation and chemotherapy. So she started checking in with Kent through her smartphone. Kent was skeptical of the arrangement at first, thinking, “Can this really work?” Her Wi-Fi was glitchy and video calls froze as she tried to talk from her bed. Sometimes the internet was shut off entirely at her Burbank apartment because Kent had lost work and was short on money to pay bills.