''.....If you knew nothing about electrical engineering you...

''.....If you knew nothing about electrical engineering you wouldn't wire up your house,(I MIGHT GIVE IT A GO 'SEASY ! ) ! !

if you knew nothing about carpentry you wouldn't build a boat,( WHY NOT GIVE IT A GO ! ! ! )

yet if you know nothing about the sharemarket (or the share you're buying) you're encouraged to dive on in? ( YES , IF IT LOOKS A GOER )

it's called risk taking , though admitedly dubious , unless one is as clever as you ! !
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sentiment ''none'' means wait a while to see the lie of the land