Completely agree, but I think this case is a bit more subtle than that. £250 is a gambler's punt - "I don't understand this, but I can afford to lose £250 to se

Completely agree, but I think this case is a bit more subtle than that. £250 is a gambler's punt - "I don't understand this, but I can afford to lose £250 to see what happens." When that seems to be going well and people are explaining how your £250 is now worth £450 because X, Y and Z has happened, I suspect it's fairly easy to start thinking you understand enough to invest more without it feeling like a punt anymore.