Just an add -The crash of nickel during 2008-2009 was due to the Lehman inspired GFC in 2008-2009 to a record low (LME) $8850 tonne this was an out of the ordinary event which was an all round financial upheaval at this time only to be almost repeated during the Chinese oversupply Flash-crash 2014-15. to (LME) $9100 tonne with an oversupply of metals whereby nickel was hit again. This is over a 10 year + period. This shows the the volatility of metals over economic times and displays same on charts. If you know the fundamental reason why it happens it helps a lot.
Of course we can't live forever in fish bowls but can be aware that metals that can go down in oversupply can also reverse quickly in high demand, under-supplied situations. When we go into a new mining venture we must know our onions and be in top financial shape with accompanying business acumen to handle this type of pressure business supply environment long before we sign on. That's all I'm saying on the matter but keeping an open mind on it until I see business plans and ideas.