in this way , the mainstream view on the central principle underlying the unstable political situation during the sengoku period gradually shifted from thinking it was gekokujo to people simply taking power for themselves via shukun oshikome . このように、戦国期の流動的な権力状況の中心原理を、下剋上ではなく、主君押込めによって捉え直す考えが次第に主流となっている。
while a mainstream view for these disappearances is that they were due to poor sailing , arikiyo saeki says that it was due to the fact the boats got larger and haruyuki tono argues that it was due to the diplomatic conditions of the missions to tang china . この原因を航海技術が未熟であったためとする見方が主流であるが、佐伯有清は遣唐使船の大型化、東野治之は遣唐使の外交的条件を挙げている。
