Final answer:
Krakauer characterizes Khumbu as thriving from mountaineering tourism, though this prosperity comes at the cost of investments in public services.
Step-by-step explanation:
Jon Krakauer describes the current social and economic state of Khumbu as prosperous and thriving due to mountaineering tourism. The region, being part of Nepal, benefits from the interests of tourists and the income generated through activities like trekking and expeditions to Mount Everest. However, the investment in tourism infrastructure comes at a cost, diverting funds away from essential public services like schools and medical clinics. Nepal's economy is heavily dependent on agriculture and tourism, with eco-tourism being a significant draw. While infrastructure developments are made to support tourism, it is a constant struggle to balance these with the needs of the local population.