why MRC is going up at the moment ? Is there a specific reason ?
the same reason of all coins, pump and get more profit at top,
this will last one week up,
you are welcomed to participate at any stage
so there is no reason... so it is certainly better to wait for "real" events
why DOGE is going up at the moment ? Is there a specific reason ? no reason... no reason... no reason... no reason... no reason... no reason...

I think reason is low price and degreasing blockrewards.
Both one gives great change to profit with short pump and also for long term invest.
The "real" events we will see when block reward is near 10,000-20,000.
It will be interest time

. Hold your hard mined coins for that.
You will not never get same amount coins what you still mining.