....remember that excavation by great-grandfather 'gros', dazzlenation?...along with the lake-dwelling exhibition that oscar 'n' aunt nini were to take me to...regarding lake neuchatel...anyway, at that point in time and judging by the pottery, mainly...the swiss had figured that an indo-chinese nomadic tribe had settled by the lake and then decided to live upon it, catching fish etc etc...they had constructed a model...along the lines of huts on piers, supported by poles...oh and the marines had been interested in that lake, as well...seeing as it had shellfish...along with tides and currents...behaved a bit like a 'sea' etc etc....see previous post....go figure:

https://www.swissinfo.ch/eng/lake-dwellings-reveal-hidden-past/30542748