$1800 from the technical aspect is almost impossible at this point.
The only thing that could make Bitcoin drop so low would be a major code flaw or something. Maybe if at least 3 top exchanges were hacked and drained in 1 month, but it's also not possible since the big ones have cold walets. You cann take only a small part of their total coins even if you manage to hack them.
Going below 3000 would require at least 6 months of a serious bear market, but we just were in a bear market. Cycles don't work like that.
You probably at least want to state your reasoning on why you think bitcoin will drop that low if you want this thread to have a constructive discussion.
No reasoning - usually means trolling.