Pioneering a controversial, xenon gas-augmented protocol, the celebrated alpinist Lukas Furtenbach orchestrated a remarkably rapid ascent of Everest by a British team, departing London on May 16th, summiting on May 21st, and returning a mere two days thereafter, a feat now under scrutiny by Nepalese mountaineering bodies amidst debates regarding the ethical and physiological implications of the aforementioned treatment, which, coupled with pre-acclimatisation in hypoxia tents and further xenon exposure at a German facility, purportedly mitigates the deleterious effects of acute mountain sickness, whilst Furtenbach himself contends that such expedited ascents could diminish the environmental footprint of expeditions, specifically in terms of bioburden, though he is keen to emphasise that the xenon administration itself occurred extra-territorially, maintaining he can substantiate its safety profile in alpinists.