Why climbing indoors is rubbish but not a waste of time

Time TIcks ― ...The snow was turning icy now I needed a second ice axe out. I cut a ledge and faffed about, my youthful inexperience making me drop a mitten, it quickly rolled out of sight into the mist, at least I had a spare in my sack. Eventually I got sorted and set off up my first bit of steep snow-ice with twin tools. ∙ Andy had gone off ahead into the murk his boundless optimism and natural athleticism beating my caution hands down. I started swinging the axes and worked my way up a steep ramp [...].