With $191.367.051.980 in capitalization, is impossible to pump (or dump) artificially Bitcoin. Maybe when price was 50 time less than now, some little pump was possible too. But not now, now with this market volume

there are no 'strong support' at this moment because it's been pumped so hard,
just like what people said,
when we're at $17.000 people said that $15.000 was its support.
but it broke that level and went down a bit deeper.
it's all about people point of view.
always do your own research and never believe what people says to you without a solid evidence behind it.