A presentation at JSConf EU in in Berlin, Germany by Denys Mishunov
Illusion of TIME
REMEMBER THAT TIME IS MONEY
50 %
SITE LOADING Conversions 1 SECOND vs SITE LOADING 3 SECONDS http://goo.gl/oWgPrn 22 + %
Conversions 1 SECOND PERFORMANCE IMPROVEMENT http://goo.gl/E030E 2
Conversions 1 SECOND PERFORMANCE IMPROVEMENT http://goo.gl/E030E $482.2 billion
Conversions 2,2 SECONDS PERFORMANCE IMPROVEMENT https://goo.gl/0fx4ma 15,4 + %
Conversions 2,2 SECONDS PERFORMANCE IMPROVEMENT https://goo.gl/0fx4ma 10,28 million/year
$88.99 billion
$88.99 billion
EASY TIGER
PERFORMANCE IS NOT MATHEMATICS
PERFORMANCE IS PERCEPTION
WEBER-FECHNER LAW “ The just-noticeable difference between two stimuli is proportional to the magnitude of the stimuli. ”
WEBER-FECHNER LAW DURATION JND JND = k% of DURATION
20% RULE DURATION JND JND = 20%
NOTICEABLE = != MEANINGFUL
“ TIME persists merely as a consequence of the EVENTS taking place in [space]. Martin Heidegger ”
EVENT START EVENT MARKER END EVENT MARKER
ACTIVE PASSIVE
ACTIVE PASSIVE
ACTIVE PASSIVE
PEOPLE HATE PASSIVE WAIT
PREEMPTIVE START EVENT START EVENT MARKER
PRELOAD TOP HITS mobile Safari Settings / Safari / Preload Top Hits
OPENNING IN NEW TAB
OPENNING IN NEW TAB
rel=“dns-prefetch” rel=“preconnect” rel=“prefetch” rel=“prerender” rel=“subresource”
EARLY COMPLETION EVENT END EVENT MARKER
EARLY COMPLETION EVENT END EVENT MARKER
PASSIVE PHASE
ACTIVE PHASE
ACTIVE PHASE PASSIVE PHASE
MODERN USE OF MIRRORS
THANK YOU @mishunov DigitalGarden AS, Norway
What is common for Walt Disney World, airports and magicians? All of these are distorting user’s perception to build illusions that make us feel good even though we don’t notice them so easily. Those are time illusions. Developers, as magicians, can use the same techniques to distort users’ perception of time to deliver fast and competitive products. The talk is about psychology, perception, time and, of course, illusions.
for free. You
can too.