Hello all, I very interested by biological solitons (travelling waves) but my mathematical/physics knowledge is largely out to date. I post a picture of a biologic soliton below. Solitons involve maths/physics but I post the subject here? My asking is the following 1/ if a soliton is effectively a travelling wave, may we say that future points of its curve are already known since they existed in the past of the wave? see A, B, C examples. 2/ Since a soliton exists at a time t, may we say that it will at a time t+alpha since the curve exists at time t?