It seems that idealism ought to imply the effectiveness of some sort of magical thinking such as is promoted by the various kinds of 'new thought' movements or the so called 'law of attraction', or else the idea that metaphysical truth evolves with the slow changes in the historical development of consciousness. But all of this is at the very least implausible. To think that in this way idealism presents itself as falsifiable is however to beg the question in favour of an objective reality independent of the knowing of it. A fully consistent idealism can only be a sort of non-duality for which the appearance of a world over against consciousness is only and exactly just that. If you think there is a past or a future or a science concerning them with a reality beyond their very appearance in this moment you have already started to build a world out of metaphysical abstractions. You can still be accused of solipsism, but only of a solipsism that has lost its sting, since you, the thinker are also just an appearance. It is a solipsism on behalf of the void that precedes your birth and follows your death in imaginary time and any other kind of time you might happen to conceive.