Yeah I realise there's exceptions.If you look closely there are alts that aren't so hinged to BTC.
For example, one of the more popular ones did over 15% gain yesterday (no not all at once) over a series of less than ten trades.
Seek and ye shall find...
But I'd prefer it to be the general case rather than specific cases. It's generally true that if bitcoin drops 20% it's better to exit most alt positions and enter again when bitcoin has bottomed, because they tend to follow bitcoin down. Makes for a rather one-dimensional market at times.
