這に入れる彫刻：身体の侵入を許す彫刻

Design a public sculpture that abandons the do-not-touch convention entirely and is built to be climbed into. Show a large hollow form some eight metres across, its outer surface an abstract rounded mass, cut open by three generous apertures at different heights that invite entry — one at ground level big enough to walk through, one at two metres reached by integral footholds, one small opening near the top that frames a view. Detail the interior as the more considered space: a smooth continuous shell lined in a pale warm surface, its curvature forming natural seats and leaning places, with the three apertures admitting shafts of light that cross inside and move through the day. Show the acoustic behaviour implied — the concave interior gathering and amplifying voices, so people inside speak differently than outside. Detail the outer shell as a robust seamless composite in a muted colour, its lower two metres already visibly scuffed and polished by hands and shoes, that wear treated as evidence of success rather than damage. Show five or six people using it simultaneously at different levels, one lying inside, two climbing, one peering through the high opening. Set it in a park lawn. Show bright afternoon light. Photorealistic, inhabited, pale shell with bright apertures, low three-quarter view.