There is very little point in trying to make an argument from short term volatility of the pound euro exchange rate when merely measured over hours. It is the trend that is all important.
A well educated scientist/biologist should know better than most that "one swallow does not a summer make".


http://uk.businessinsider.com/european-central-bank-monetary-policy-decisions-for-january-2018-1

Having a strong currency is not a win win situation apart from those wealthy pensioners taking endless over seas vacations.