Crash within Second

Just few hours ago I nearly crashed with a Taxi at speed of 90km. If this is happened, I think I can't further share here. Tonight I drove over Sau Mau Ping Road and one Taxi suddenly changed to my lane. At that moment, my car was high speed and close to the taxi. My immediate reaction was turning aside to avoid the crash. Now thinking back my last decision, this is dammit silly and danger. What happen if another car in opposite lane? I was no sense to slow down or hard brake, and totally whelming in speeding, CRAZY!!