I totally disagree. I don't think the cost of sequencing is the bottleneck here, and it doesn't need to come down to $50. Even at $1k for a full genome sequence (which I think is in the range of a good high-quality sequence these days), it's totally feasible for anyone with a disease to get themselves sequenced.

The hard part is interpreting which part of the sequence is causing the problem, and developing targeted therapies to treat it. Sequencing any patient's genome has already been totally feasible for a few years now, but we still don't understand how to make the information actionable once we have it.