Early web browsers supported only a very simple version of HTML. The rapid development of proprietary web browsers led to the development of non-standard dialects of HTML, leading to problems with interoperability. Modern web browsers support a combination of standards-based and de facto HTML and XHTML, which should be rendered in the same way by all browsers.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What did early XHTML support?
Ah, so.. unanswerable

In non-Commonwealth countries the prime minister may be entitled to the style of Excellency like a president. In some Commonwealth countries prime ministers and former prime ministers are styled Right Honourable due to their position, for example in the Prime Minister of Canada. In the United Kingdom the prime minister and former prime ministers may appear to also be styled Right Honourable, however this is not due to their position as head of government but as a privilege of being current members of Her Majesty's Most Honourable Privy Council.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What honorific title can be given to prime ministers in commonwealth nations?
Ah, so.. Right Honourable

Psychoactive drugs can impair the judgment of time. Stimulants can lead both humans and rats to overestimate time intervals, while depressants can have the opposite effect. The level of activity in the brain of neurotransmitters such as dopamine and norepinephrine may be the reason for this. Such chemicals will either excite or inhibit the firing of neurons in the brain, with a greater firing rate allowing the brain to register the occurrence of more events within a given interval (speed up time) and a decreased firing rate reducing the brain's capacity to distinguish events occurring within a given interval (slow down time).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What does a decreased firing rate allow more of in the brain?
Ah, so..
unanswerable