How is it nonsense? Either the machete is moving according to signals picked up from the plant, or it's not. Are you asserting that the voltages sensed are jus

How is it nonsense? Either the machete is moving according to signals picked up from the plant, or it's not. Are you asserting that the voltages sensed are just random noise, and do not represent internal potentials? Or just that the plant is not deliberately waving around a knife? Plants do exhibit electrical potential changes in response to environmental and internal stimuli. It would be surprising if those vary as dramatically as the exhibit suggests, but not physiologically implausible. Plants do not have separate nerve tissue crammed together into a skull to minimize signal transit time as needed to respond in millisecond increments, as animals must, but they certainly do have cells distributed throughout that could respond as nerve cells do, given connectivity and stimuli, on a slower timebase. We don't know if there are such connections or responses. Each plant taxon might vary substantially from others, in this detail, so not finding it in pea plants does not tell you anything about philodendrons. Proving its absence in peas could be arbitrarily difficult.