A World View: John Latham; Speak review – a time-bending experience

Serpentine Gallery; Serpentine Sackler Gallery, London
From proto-psychedelic film to book chewing, the hardcore conceptual art of John Latham continues to inspireTime it right, and you could enter straight into the most dizzying spectacle – a million coloured circles hurtling towards you on screen. Discs flash and whirl in the darkness, accompanied by what might be the sound of distant rioting but is actually a circular saw. The furious buzz is perfectly attuned to the constant strobe. It